| Scientific name | Common name | Type of species | Level of threat |
|---|
| Acacia acanthoclada | Harrow Wattle | Plant > Shrubs | Endangered |
| Acacia acrionastes | Pindari Wattle | Plant > Shrubs | Endangered |
| Acacia atrox | Myall Creek Wattle | Plant > Shrubs | Endangered |
| Acacia ausfeldii | Ausfeld's Wattle | Plant > Shrubs | Vulnerable |
| Acacia bakeri | Marblewood | Plant > Trees | Vulnerable |
| Acacia baueri subsp. aspera | Acacia baueri subsp. aspera | Plant > Shrubs | Vulnerable |
| Acacia bynoeana | Bynoe's Wattle | Plant > Shrubs | Endangered |
| Acacia carneorum | Purple-wood Wattle | Plant > Shrubs | Vulnerable |
| Acacia chrysotricha | Newry Golden Wattle | Plant > Trees | Endangered |
| Acacia clunies-rossiae | Kanangra Wattle | Plant > Shrubs | Vulnerable |
| Acacia constablei | Narrabarba Wattle | Plant > Shrubs | Vulnerable |
| Acacia courtii | North Brother Wattle | Plant > Shrubs | Vulnerable |
| Acacia curranii | Curly-Bark Wattle | Plant > Shrubs | Vulnerable |
| Acacia dangarensis | Acacia dangarensis | Plant > Trees | Endangered |
| Acacia flocktoniae | Flockton Wattle | Plant > Shrubs | Vulnerable |
| Acacia georgensis | Bega Wattle | Plant > Trees | Vulnerable |
| Acacia gordonii | Acacia gordonii | Plant > Shrubs | Endangered |
| Acacia jucunda | Yetman Wattle | Plant > Shrubs | Endangered |
| Acacia loderi Shrublands | Nelia Shrublands | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Acacia macnuttiana | MacNutt's Wattle | Plant > Shrubs | Vulnerable |
| Acacia melvillei Shrubland in the Riverina and Murray-Darling Depression bioregions | Acacia melvillei Shrubland in the Riverina and Murray-Darling Depression bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Acacia notabilis | Mallee Golden Wattle | Plant > Shrubs | Endangered |
| Acacia petraea | Lancewood | Plant > Trees | Endangered |
| Acacia phasmoides | Phantom Wattle | Plant > Shrubs | Vulnerable |
| Acacia prominens - endangered population | Acacia prominens (Gosford wattle) population in the Hurstville and Kogarah LGAs | Plant > Endangered Populations | Endangered Population |
| Acacia pubescens | Downy Wattle | Plant > Shrubs | Vulnerable |
| Acacia pubifolia | Velvet Wattle | Plant > Shrubs | Endangered |
| Acacia pycnostachya | Bolivia Wattle | Plant > Shrubs | Vulnerable |
| Acacia rivalis | Silver Wattle | Plant > Shrubs | Endangered |
| Acacia ruppii | Rupp's Wattle | Plant > Shrubs | Endangered |
| Acacia terminalis subsp. terminalis | Sunshine Wattle | Plant > Shrubs | Endangered |
| Acalypha eremorum | Acalypha | Plant > Shrubs | Endangered |
| Acronychia littoralis | Scented Acronychia | Plant > Trees | Endangered |
| Acrophyllum australe | Acrophyllum australe | Plant > Shrubs | Vulnerable |
| Adelotus brevis - endangered population | Tusked Frog population in the Nandewar and New England Tablelands Bioregions | Animal > Endangered Populations | Endangered Population |
| Aepyprymnus rufescens | Rufous Bettong | Animal > Marsupials | Vulnerable |
| Agnes Banks Woodland in the Sydney Basin Bioregion | Agnes Banks Woodland in the Sydney Basin | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Aldrovanda vesiculosa | Waterwheel Plant | Plant > Aquatic plants | Endangered |
| Alectura lathami - endangered population | Australian Brush-turkey population in the Nandewar and Brigalow Belt South bioregions | Animal > Birds | Endangered Population |
| Alexfloydia repens | Floyd's Grass | Plant > Herbs and Forbs | Endangered |
| Allocasuarina defungens | Dwarf Heath Casuarina | Plant > Shrubs | Endangered |
| Allocasuarina glareicola | Allocasuarina glareicola | Plant > Shrubs | Endangered |
| Allocasuarina luehmannii Woodland in the Riverina and Murray-Darling Depression bioregions | Buloke Woodland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Allocasuarina portuensis | Nielsen Park She-oak | Plant > Shrubs | Endangered |
| Allocasuarina simulans | Nabiac Casuarina | Plant > Shrubs | Vulnerable |
| Almaleea cambagei | Torrington Pea | Plant > Shrubs | Endangered |
| Amaurornis olivaceus | Bush-hen | Animal > Birds | Vulnerable |
| Ammobium craspedioides | Yass Daisy | Plant > Herbs and Forbs | Vulnerable |
| Amorphospermum whitei | Rusty Plum | Plant > Trees | Vulnerable |
| Amphibromus fluitans | River Swamp Wallaby-grass | Plant > Herbs and Forbs | Vulnerable |
| Amyema plicatula | Amyema plicatula | Plant > Epiphytes and climbers | Endangered |
| Amytornis barbatus barbatus | Grey Grasswren | Animal > Birds | Endangered |
| Amytornis striatus | Striated Grasswren | Animal > Birds | Vulnerable |
| Amytornis textilis modestus | Thick-billed Grasswren | Animal > Birds | Endangered |
| Ancistrachne maidenii | Ancistrachne maidenii | Plant > Herbs and Forbs | Vulnerable |
| Angiopteris evecta | Giant Fern | Plant > Ferns and Cycads | Endangered |
| Angophora exul | Gibraltar Rock Apple | Plant > Trees | Endangered |
| Angophora inopina | Charmhaven Apple | Plant > Trees | Vulnerable |
| Angophora robur | Sandstone Rough-barked Apple | Plant > Trees | Vulnerable |
| Anomalopus mackayi | Five-clawed Worm-skink | Animal > Reptiles | Endangered |
| Anseranas semipalmata | Magpie Goose | Animal > Birds | Vulnerable |
| Antechinomys laniger | Kultarr | Animal > Marsupials | Endangered |
| Apatophyllum constablei | Apatophyllum constablei | Plant > Shrubs | Not listed |
| Aponogeton queenslandicus | Aponogeton queenslandicus | Plant > Aquatic plants | Endangered |
| Aprasia inaurita | Mallee Worm-lizard | Animal > Reptiles | Endangered |
| Aprasia parapulchella | Pink-tailed Worm-lizard | Animal > Reptiles | Vulnerable |
| Archidendron hendersonii | White Laceflower | Plant > Trees | Vulnerable |
| Arctocephalus forsteri | New Zealand Fur-seal | Animal > Marine Mammals | Vulnerable |
| Arctocephalus pusillus doriferus | Australian Fur-seal | Animal > Marine Mammals | Vulnerable |
| Ardeotis australis | Australian Bustard | Animal > Birds | Endangered |
| Argyreus hyperbius | Laced Fritillary | Animal > Invertebrates | Endangered |
| Artesian Springs Ecological Community | Artesian Springs Ecological Community | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Arthraxon hispidus | Hairy Jointgrass | Plant > Herbs and Forbs | Vulnerable |
| Arthropteris palisotii | Lesser Creeping Fern | Plant > Ferns and Cycads | Endangered |
| Asperula asthenes | Trailing Woodruff | Plant > Herbs and Forbs | Vulnerable |
| Aspidites ramsayi | Woma | Animal > Reptiles | Vulnerable |
| Assa darlingtoni | Pouched Frog | Animal > Amphibians | Vulnerable |
| Asterolasia buxifolia | Asterolasia buxifolia | Plant > Shrubs | Endangered |
| Asterolasia elegans | Asterolasia elegans | Plant > Shrubs | Endangered |
| Asterolasia sp. 'Dungowan Creek' | Dungowan Starbush | Plant > Shrubs | Endangered |
| Astrotricha cordata | Heart-leaved Star Hair | Plant > Shrubs | Endangered |
| Astrotricha crassifolia | Thick-leaf Star-hair | Plant > Shrubs | Vulnerable |
| Astrotricha roddii | Rod's Star Hair | Plant > Shrubs | Endangered |
| Astrotricha sp. Wallagaraugh | Merimbula Star-hair | Plant > Shrubs | Endangered |
| Atrichornis rufescens | Rufous Scrub-bird | Animal > Birds | Vulnerable |
| Atriplex infrequens | A saltbush | Plant > Herbs and Forbs | Vulnerable |
| Atriplex sturtii | A saltbush | Plant > Shrubs | Endangered |
| Austrostipa metatoris | A spear-grass | Plant > Herbs and Forbs | Vulnerable |
| Austrostipa nullanulla | A spear-grass | Plant > Herbs and Forbs | Endangered |
| Austrostipa wakoolica | A spear-grass | Plant > Herbs and Forbs | Endangered |
| Babingtonia granitica | Granite Babingtonia | Plant > Shrubs | Vulnerable |
| Babingtonia prominens | Nymboida Babingtonia | Plant > Shrubs | Endangered |
| Babingtonia silvestris | Woodland Babingtonia | Plant > Shrubs | Endangered |
| Baeckea kandos | Baeckea kandos | Plant > Shrubs | Endangered |
| Balaenoptera musculus | Blue Whale | Animal > Marine Mammals | Endangered |
| Baloghia marmorata | Jointed Baloghia | Plant > Shrubs | Vulnerable |
| Baloskion longipes | Dense Cord-rush | Plant > Herbs and Forbs | Vulnerable |
| Bangalay Sand forest of the Sydney Basin and South East Corner Bioregions | Bangalay Sand forest of the Sydney Basin and South East Corner Bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Banksia conferta subsp. conferta | Banksia conferta subsp. conferta | Plant > Shrubs | Critically Endangered |
| Belvisia mucronata | Needle-leaf Fern | Plant > Ferns and Cycads | Endangered |
| Ben Halls Gap National Park Sphagnum Moss Cool Temperate Rainforest | Ben Halls Gap Sphagnum Moss Cool Temperate Rainforest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Bertya ingramii | Narrow-leaved Bertya | Plant > Shrubs | Endangered |
| Bertya sp. Chambigne NR | Chambigne Bertya | Plant > Shrubs | Endangered |
| Bertya sp. Cobar-Coolabah
(Bertya opponens) | Coolabah Bertya | Plant > Shrubs | Vulnerable |
| Blue Gum High Forest | Blue Gum High Forest | Community > Threatened Ecological Communities | Critically Endangered Ecological Community |
| Blue Mountains Shale Cap Forest in the Sydney Basin Bioregion | Blue Mountains Shale Cap Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Blue Mountains Swamps in the Sydney Basin Bioregion | Blue Mountains Swamps | Community > Threatened Ecological Communities | Vulnerable |
| Boronia boliviensis | Bolivia Hill Boronia | Plant > Shrubs | Endangered |
| Boronia deanei | Deane's Boronia | Plant > Shrubs | Vulnerable |
| Boronia granitica | Granite Boronia | Plant > Shrubs | Vulnerable |
| Boronia hapalophylla | Shannon Creek Boronia | Plant > Shrubs | Endangered |
| Boronia repanda | Granite Rose | Plant > Shrubs | Endangered |
| Boronia ruppii | Rupp's Boronia | Plant > Shrubs | Endangered |
| Boronia umbellata | Orara Boronia | Plant > Shrubs | Vulnerable |
| Bosistoa selwynii | Heart-leaved Bonewood | Plant > Trees | Vulnerable |
| Bosistoa transversa | Yellow Satinheart | Plant > Trees | Vulnerable |
| Bossiaea oligosperma | Few-seeded Bossiaea | Plant > Shrubs | Vulnerable |
| Botaurus poiciloptilus | Australasian Bittern | Animal > Birds | Vulnerable |
| Brachycome muelleroides | Claypan Daisy | Plant > Herbs and Forbs | Vulnerable |
| Brachycome papillosa | Mossgiel Daisy | Plant > Herbs and Forbs | Vulnerable |
| Brachyscome ascendens | Border Ranges Daisy | Plant > Herbs and Forbs | Endangered |
| Brigalow within the Brigalow Belt South, Nandewar and Darling Riverine Plains Bioregions | Brigalow Community | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Brigalow-Gidgee woodland/shrubland in the Mulga Lands and Darling Riverine Plains Bioregions | Brigalow-gidgee Woodland/shrubland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Brogo Wet Vine Forest in the South East Corner Bioregion | Brogo Wet Vine Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Budawangia gnidioides | Budawangs Cliff-heath | Plant > Shrubs | Vulnerable |
| Bulbophyllum globuliforme | Hoop Pine Orchid | Plant > Orchids | Vulnerable |
| Burhinus grallarius | Bush Stone-curlew | Animal > Birds | Endangered |
| Burramys parvus | Mountain Pygmy-possum | Animal > Marsupials | Endangered |
| Byron Bay Dwarf Graminoid Clay Heath Community | Byron Bay Dwarf Graminoid Clay Heath | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Cacatua leadbeateri | Pink Cockatoo | Animal > Birds | Vulnerable |
| Cacophis harriettae | White-crowned Snake | Animal > Reptiles | Vulnerable |
| Cadellia pentastylis | Ooline | Plant > Trees | Vulnerable |
| Cadellia pentastylis (Ooline) community in the Nandewar and Brigalow Belt South bioregion | Ooline Community | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Caesalpinia bonduc | Knicker Nut | Plant > Shrubs | Endangered |
| Caesia parviflora var. minor | Small Pale Grass-lily | Plant > Herbs and Forbs | Endangered |
| Caladenia arenaria | Sand-hill Spider Orchid | Plant > Orchids | Endangered |
| Caladenia concolor | Crimson Spider Orchid | Plant > Orchids | Endangered |
| Caladenia porphyrea | Caladenia porphyrea | Plant > Orchids | Endangered |
| Caladenia rosella | Rosella Spider Orchid | Plant > Orchids | Presumed extinct |
| Caladenia tessellata | Tessellated Spider Orchid | Plant > Orchids | Endangered |
| Calamanthus fuliginosus | Striated Fieldwren | Animal > Birds | Vulnerable |
| Calidris alba | Sanderling | Animal > Birds | Vulnerable |
| Calidris tenuirostris | Great Knot | Animal > Birds | Vulnerable |
| Callistemon linearifolius | Netted Bottle Brush | Plant > Shrubs | Vulnerable |
| Callitriche cyclocarpa | Western Water-starwort | Plant > Aquatic plants | Vulnerable |
| Callitris baileyi | Bailey’s Cypress Pine | Plant > Trees | Endangered |
| Callitris endlicheri, Woronora Plateau population | Black Cypress Pine, Woronora Plateau population | Plant > Endangered Populations | Endangered Population |
| Callitris oblonga | Pygmy Cypress Pine | Plant > Shrubs | Vulnerable |
| Callocephalon fimbriatum | Gang-gang Cockatoo | Animal > Birds | Vulnerable |
| Callocephalon fimbriatum population in the Hornsby and Ku-ring-gai Local Government Areas | Gang-gang Cockatoo population in the Hornsby and Ku-ring-gai LGAs | Animal > Endangered Populations | Endangered Population |
| Calochilus pulchellus | Pretty Beard Orchid | Plant > Orchids | Endangered |
| Calomnion complanatum | Calomnion complanatum | Plant > Algae, Mosses and Lichens | Endangered |
| Calophanoides hygrophiloides | Native Justicia | Plant > Herbs and Forbs | Endangered |
| Calotis glandulosa | Mauve Burr-daisy | Plant > Herbs and Forbs | Vulnerable |
| Calotis moorei | A burr-daisy | Plant > Herbs and Forbs | Endangered |
| Calotis pubescens | Max Mueller's Burr-daisy | Plant > Herbs and Forbs | Endangered |
| Calyptorhynchus banksii | Red-tailed Black-Cockatoo | Animal > Birds | Vulnerable |
| Calyptorhynchus lathami | Glossy Black-cockatoo | Animal > Birds | Vulnerable |
| Calyptorhynchus lathami - endangered population | Glossy Black-cockatoo population in the Riverina | Animal > Endangered Populations | Endangered Population |
| Calystegia affinis | Lord Howe Island Morning Glory | Plant > Epiphytes and climbers | Endangered |
| Camarophyllopsis kearneyi | Camarophyllopsis kearneyi | Fungi > Fungi | Endangered |
| Capparis canescens | Wild Orange | Plant > Shrubs | Endangered |
| Capparis loranthifolia var. loranthifolia | Narrow-leafed Bumble | Plant > Trees | Endangered |
| Carbeen Open Forest community in the Darling Riverine Plains and Brigalow Belt South Bioregions | Carbeen Open Forest community in the Darling Riverine Plains and Brigalow Belt South Bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Caretta caretta | Loggerhead Turtle | Animal > Reptiles | Endangered |
| Carex archeri | Archer's Carex | Plant > Herbs and Forbs | Endangered |
| Carex klaphakei | Klaphake's Sedge | Plant > Herbs and Forbs | Endangered |
| Carex raleighii | Raleigh Sedge | Plant > Herbs and Forbs | Endangered |
| Carmichaelia exsul | Lord Howe Island Broom | Plant > Shrubs | Endangered |
| Cassia brewsteri var. marksiana | Brush Cassia | Plant > Trees | Endangered |
| Castlereagh Swamp Woodland Community | Castlereagh Swamp Woodland Community | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Casuarina obesa | Swamp She-oak | Plant > Shrubs | Endangered |
| Centranthera cochinchinensis | Swamp Foxglove | Plant > Herbs and Forbs | Endangered |
| Cercartetus concinnus | Western Pygmy-possum | Animal > Marsupials | Endangered |
| Cercartetus nanus | Eastern Pygmy-possum | Animal > Marsupials | Vulnerable |
| Certhionyx variegatus | Pied Honeyeater | Animal > Birds | Vulnerable |
| Chalinolobus dwyeri | Large-eared Pied Bat | Animal > Bats | Vulnerable |
| Chalinolobus nigrogriseus | Hoary Wattled Bat | Animal > Bats | Vulnerable |
| Chalinolobus picatus | Little Pied Bat | Animal > Bats | Vulnerable |
| Chamaesyce psammogeton | Sand Spurge | Plant > Herbs and Forbs | Endangered |
| Charadrius leschenaultii | Greater Sand-plover | Animal > Birds | Vulnerable |
| Charadrius mongolus | Lesser Sand-plover | Animal > Birds | Vulnerable |
| Cheilanthes sieberi subsp. pseudovellea | Cheilanthes sieberi subsp. pseudovellea | Plant > Ferns and Cycads | Endangered |
| Chelonia mydas | Green Turtle | Animal > Reptiles | Vulnerable |
| Chiloglottis anaticeps | Bird Orchid | Plant > Orchids | Endangered |
| Chiloglottis platyptera | Barrington Tops Ant Orchid | Plant > Orchids | Vulnerable |
| Choricarpia subargentea | Giant Ironwood | Plant > Trees | Endangered |
| Chorizema parviflorum Benth. (a shrub) population, Wollongong and Shellharbour local government areas | Chorizema parviflorum Benth. (a shrub) population, Wollongong and Shellharbour local government areas | Plant > Endangered Populations | Endangered Population |
| Christinus guentheri | Lord Howe Island Gecko | Animal > Reptiles | Vulnerable |
| Cinclosoma castanotus | Chestnut Quail-thrush | Animal > Birds | Vulnerable |
| Clematis fawcettii | Northern Clematis | Plant > Epiphytes and climbers | Vulnerable |
| Climacteris affinis - endangered population | White-browed Treecreeper population in the Carrathool LGA south of the Lachlan River and Griffith LGA | Animal > Endangered Populations | Endangered Population |
| Climacteris picumnus victoriae | Brown Treecreeper (eastern subspecies) | Animal > Birds | Vulnerable |
| Coastal Cypress Pine Forest in the NSW North Coast Bioregion | Coastal Cypress Pine Forest in the NSW North Coast Bioregion | Community > Threatened Ecological Communities | Preliminary Listing |
| Coastal Saltmarsh in the NSW North Coast, Sydney Basin and South East Corner Bioregions | Coastal Saltmarsh in the NSW North Coast, Sydney Basin and South East Corner Bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Coeranoscincus reticulatus | Three-toed Snake-tooth Skink | Animal > Reptiles | Vulnerable |
| Commersonia rosea | Commersonia rosea | Plant > Shrubs | Endangered |
| Convolvulus tedmoorei | Bindweed | Plant > Herbs and Forbs | Endangered |
| Cooks River/ Castlereagh Ironbark Forest in the Sydney Basin Bioregion | Cooks River/ Castlereagh Ironbark Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Coolibah-Black Box woodland of the northern riverine plains in the Darling Riverine Plains and Brigalow Belt South bioregions | Coolibah-Black Box woodland of the northern riverine plains in the Darling Riverine Plains and Brigalow Belt South bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Coprosma inopinata | Small-leaved Currant Bush | Plant > Shrubs | Endangered |
| Coracina lineata | Barred Cuckoo-shrike | Animal > Birds | Vulnerable |
| Corchorus cunninghamii | Native Jute | Plant > Shrubs | Endangered |
| Corokia whiteana | Corokia | Plant > Shrubs | Vulnerable |
| Correa baeuerlenii | Chef's Cap Correa | Plant > Shrubs | Vulnerable |
| Correa lawrenciana var. genoensis | Genoa River Correa | Plant > Shrubs | Endangered |
| Corybas dowlingii | Red Helmet Orchid | Plant > Orchids | Endangered |
| Corynocarpus rupestris subsp. rupestris | Glenugie Karaka | Plant > Shrubs | Vulnerable |
| Cratystylis conocephala | Bluebush Daisy | Plant > Shrubs | Endangered |
| Crinia sloanei | Sloane's Froglet | Animal > Amphibians | Vulnerable |
| Crinia tinnula | Wallum Froglet | Animal > Amphibians | Vulnerable |
| Crotalaria cunninghamii | Green Bird Flower | Plant > Shrubs | Endangered |
| Cryptocarya foetida | Stinking Cryptocarya | Plant > Trees | Vulnerable |
| Cryptostylis hunteriana | Leafless Tongue Orchid | Plant > Orchids | Vulnerable |
| Ctenophorus decresii | Tawny Crevice-dragon | Animal > Reptiles | Endangered |
| Ctenotus brooksi | Wedgesnout Ctenotus | Animal > Reptiles | Vulnerable |
| Ctenotus pantherinus ocellifer | Leopard Ctenotus | Animal > Reptiles | Endangered |
| Cullen parvum | Small Scurf-pea | Plant > Herbs and Forbs | Endangered |
| Cumberland Plain Woodland | Cumberland Plain Woodland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Cupaniopsis serrata | Smooth Tuckeroo | Plant > Trees | Endangered |
| Cyclodina lichenigera | Lord Howe Island Skink | Animal > Reptiles | Vulnerable |
| Cyclodomorphus melanops elongatus | Slender Mallee Blue-tongue Lizard | Animal > Reptiles | Endangered |
| Cyclodomorphus venustus | Cyclodomorphus venustus | Animal > Reptiles | Endangered |
| Cyclopsitta diophthalma coxeni | Double-eyed Fig-Parrot | Animal > Birds | Endangered |
| Cymbidium canaliculatum population in the Hunter Catchment | Cymbidium canaliculatum population in the Hunter Catchment | Plant > Orchids | Endangered |
| Cynanchum elegans | White-flowered Wax Plant | Plant > Epiphytes and climbers | Endangered |
| Cyperus aquatilis | Water Nutgrass | Plant > Herbs and Forbs | Endangered |
| Cyperus conicus | Cyperus conicus | Plant > Herbs and Forbs | Endangered |
| Cyperus rupicola | Cliff Sedge | Plant > Herbs and Forbs | Vulnerable |
| Cyperus semifertilis | Missionary Nutgrass | Plant > Herbs and Forbs | Endangered |
| Dampiera fusca | Kydra Dampiera | Plant > Shrubs | Endangered |
| Daphnandra sp. C 'Illawarra' | Illawarra Socketwood | Plant > Trees | Endangered |
| Darwinia biflora | Darwinia biflora | Plant > Shrubs | Vulnerable |
| Darwinia fascicularis subsp. Oligantha - endangered population | Darwinia fascicularis subsp. oligantha population in the Baulkham Hills and Hornsby LGAs | Plant > Endangered Populations | Endangered Population |
| Darwinia glaucophylla | Darwinia glaucophylla | Plant > Shrubs | Vulnerable |
| Darwinia peduncularis | Darwinia peduncularis | Plant > Shrubs | Vulnerable |
| Dasyornis brachypterus | Eastern Bristlebird | Animal > Birds | Endangered |
| Dasyurus maculatus | Spotted-tailed Quoll | Animal > Marsupials | Vulnerable |
| Dasyurus viverrinus | Eastern Quoll | Animal > Marsupials | Endangered |
| Davidsonia jerseyana | Davidson's Plum | Plant > Trees | Endangered |
| Davidsonia johnsonii | Smooth Davidson's Plum | Plant > Trees | Endangered |
| Delma australis | Marble-faced Delma | Animal > Reptiles | Endangered |
| Delma impar | Striped Legless Lizard | Animal > Reptiles | Vulnerable |
| Demansia torquata | Collared Whip Snake | Animal > Reptiles | Vulnerable |
| Dendrobium melaleucaphilum | Spider orchid | Plant > Orchids | Endangered |
| Dendrocnide moroides | Gympie Stinger | Plant > Shrubs | Endangered |
| Dentella minutissima | Dentella minutissima | Plant > Herbs and Forbs | Endangered |
| Dermochelys coriacea | Leathery Turtle | Animal > Reptiles | Vulnerable |
| Derwentia blakelyi | Derwentia blakelyi | Plant > Shrubs | Vulnerable |
| Desmodium acanthocladum | Thorny Pea | Plant > Shrubs | Vulnerable |
| Desmodium campylocaulon | Creeping Tick-Trefoil | Plant > Herbs and Forbs | Endangered |
| Deyeuxia appressa | Deyeuxia appressa | Plant > Herbs and Forbs | Endangered |
| Dichanthium setosum | Bluegrass | Plant > Herbs and Forbs | Vulnerable |
| Digitaria porrecta | Finger Panic Grass | Plant > Herbs and Forbs | Endangered |
| Dillwynia glaucula | Michelago Parrot-pea | Plant > Shrubs | Endangered |
| Dillwynia tenuifolia | Dillwynia tenuifolia | Plant > Shrubs | Vulnerable |
| Dillwynia tenuifolia - endangered population Baulkham Hills | Dillwynia tenuifolia (a shrub) population in the Baulkham Hills LGA | Plant > Endangered Populations | Endangered Population |
| Dillwynia tenuifolia - endangered population Kemps Creek | Dillwynia tenuifolia (a shrub) population at Kemps Creek | Plant > Endangered Populations | Endangered Population |
| Diomedea antipodensis | Antipodean Albatross | Animal > Birds | Vulnerable |
| Diomedea exulans | Wandering Albatross | Animal > Birds | Endangered |
| Diomedea gibsoni | Gibson's Albatross | Animal > Birds | Vulnerable |
| Diospyros mabacea | Red-fruited Ebony | Plant > Trees | Endangered |
| Diospyros major var. ebenus forma australiensis | Shiny-leaved Ebony | Plant > Trees | Endangered |
| Diplodactylus conspicillatus | Fat-tailed Gecko | Animal > Reptiles | Endangered |
| Diplodactylus elderi | Jewelled Gecko | Animal > Reptiles | Vulnerable |
| Diplodactylus stenodactylus | Crowned Gecko | Animal > Reptiles | Vulnerable |
| Diploglottis campbellii | Small-leaved Tamarind | Plant > Trees | Endangered |
| Dipteracanthus australasicus subsp. corynothecus | Dipteracanthus australasicus subsp. corynothecus | Plant > Herbs and Forbs | Endangered |
| Discaria nitida | Leafy Anchor Plant | Plant > Shrubs | Vulnerable |
| Distichlis distichophylla | Australian Salt-grass | Plant > Herbs and Forbs | Endangered |
| Diuris aequalis | Doubletail Buttercup | Plant > Orchids | Endangered |
| Diuris arenaria | Sand Doubletail | Plant > Orchids | Endangered |
| Diuris bracteata | Diuris bracteata | Plant > Orchids | Endangered |
| Diuris disposita | Willawarrin Doubletail | Plant > Orchids | Endangered |
| Diuris flavescens | Pale Yellow Doubletail | Plant > Orchids | Critically Endangered Ecological Community |
| Diuris ochroma | Pale Golden Moths | Plant > Orchids | Endangered |
| Diuris pedunculata | Small Snake Orchid | Plant > Orchids | Endangered |
| Diuris praecox | Rough Double Tail | Plant > Orchids | Vulnerable |
| Diuris sp. aff. chrysantha | Byron Bay Diuris | Plant > Orchids | Endangered |
| Diuris sp.. (Oaklands, D.L. Jones 5380) | Oaklands Diuris | Plant > Orchids | Endangered |
| Diuris tricolor | Pine Donkey Orchid | Plant > Orchids | Vulnerable |
| Diuris tricolor population in the Muswellbrook LGA | Pine Donkey Orchid population in the Muswellbrook LGA | Plant > Orchids | Endangered Population |
| Diuris venosa | Veined Doubletail | Plant > Orchids | Vulnerable |
| Dodonaea microzyga var. microzyga | Brilliant Hopbush | Plant > Shrubs | Endangered |
| Dodonaea procumbens | Creeping Hop-bush | Plant > Shrubs | Vulnerable |
| Dodonaea sinuolata subsp. acrodentata | A Hopbush | Plant > Shrubs | Endangered |
| Dodonaea stenozyga | Desert Hopbush | Plant > Shrubs | Endangered |
| Doryanthes palmeri | Giant Spear Lily | Plant > Herbs and Forbs | Vulnerable |
| Dracophyllum macranthum | Dracophyllum macranthum | Plant > Shrubs | Vulnerable |
| Dromaius novaehollandiae - endangered population | Emu population in the NSW North Coast Bioregion and Port Stephens LGA | Animal > Endangered Populations | Endangered Population |
| Dry Rainforest of the South East Forests in the South East Corner Bioregion | Dry Rainforest of the South East Forests | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Drymodes brunneopygia | Southern Scrub-robin | Animal > Birds | Vulnerable |
| Drynaria rigidula | Basket Fern | Plant > Ferns and Cycads | Endangered |
| Dryococelus australis | Lord Howe Island Phasmid | Animal > Invertebrates | Endangered |
| Duffys Forest Ecological Community in the Sydney Basin Bioregion | Duffys Forest Ecological Community in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Dugong dugon | Dugong | Animal > Marine Mammals | Endangered |
| Dysphania plantaginella | Dysphania plantaginella | Plant > Herbs and Forbs | Endangered |
| Dysphania platycarpa | Dysphania platycarpa | Plant > Herbs and Forbs | Endangered |
| Eastern Suburbs Banksia Scrub in the Sydney Basin Bioregion | Eastern Suburbs Banksia Scrub in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Echiopsis curta | Bardick | Animal > Reptiles | Endangered |
| Egernia whitii | Centralian Ranges Rock-skink | Animal > Reptiles | Not listed |
| Egernia whitii | White's Skink population in Broken Hill Complex Bioregion | Animal > Reptiles | Endangered Population |
| Eidothea hardeniana | Nightcap Oak | Plant > Trees | Endangered |
| Elaeocarpus sp. 'Rocky Creek' | Minyon Quandong | Plant > Trees | Endangered |
| Elaeocarpus williamsianus | Hairy Quandong | Plant > Trees | Endangered |
| Elderslie Banksia Scrub Forest | Elderslie Banksia Scrub Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Eleocharis obicis | Spike-Rush | Plant > Herbs and Forbs | Vulnerable |
| Eleocharis tetraquetra | Square-stemmed Spike-rush | Plant > Herbs and Forbs | Endangered |
| Elseya belli | Bell's Turtle | Animal > Reptiles | Vulnerable |
| Elyonurus citreus | Lemon-scented Grass | Plant > Herbs and Forbs | Endangered |
| Emydura macquarii (Bellinger River Form) | Bellinger River Emydura | Animal > Reptiles | Vulnerable |
| Endiandra floydii | Crystal Creek Walnut | Plant > Trees | Endangered |
| Endiandra hayesii | Rusty Rose Walnut | Plant > Trees | Vulnerable |
| Endiandra muelleri subsp. bracteata | Green-leaved Rose Walnut | Plant > Trees | Endangered |
| Epacris hamiltonii | Epacris hamiltonii | Plant > Shrubs | Endangered |
| Epacris purpurascens var. purpurascens | Epacris purpurascens var. purpurascens | Plant > Shrubs | Vulnerable |
| Epacris sparsa | Sparse Heath | Plant > Shrubs | Vulnerable |
| Ephippiorhynchus asiaticus | Black-necked Stork | Animal > Birds | Endangered |
| Eriocaulon australasicum | Austral Pipewort | Plant > Herbs and Forbs | Endangered |
| Eriocaulon carsonii | Salt Pipewort | Plant > Herbs and Forbs | Endangered |
| Erodiophyllum elderi | Koonamore Daisy | Plant > Herbs and Forbs | Endangered |
| Erythrotriorchis radiatus | Red Goshawk | Animal > Birds | Endangered |
| Esacus neglectus | Beach Stone-curlew | Animal > Birds | Endangered |
| Eubalaena australis | Southern Right Whale | Animal > Marine Mammals | Vulnerable |
| Eucalyptus alligatrix subsp. miscella | Eucalyptus alligatrix subsp. miscella | Plant > Trees | Vulnerable |
| Eucalyptus approximans | Barren Mountain Mallee | Plant > Trees | Endangered |
| Eucalyptus aquatica | Broad-leafed Sallee | Plant > Trees | Vulnerable |
| Eucalyptus benthamii | Camden White Gum | Plant > Trees | Vulnerable |
| Eucalyptus boliviana | Bolivia Stringybark | Plant > Trees | Vulnerable |
| Eucalyptus caleyi subsp. ovendenii | Ovenden's Ironbark | Plant > Trees | Vulnerable |
| Eucalyptus camaldulensis | River Red Gum population in the Hunter Catchment | Plant > Endangered Populations | Endangered Population |
| Eucalyptus camfieldii | Camfield's Stringybark | Plant > Mallees | Vulnerable |
| Eucalyptus camphora subsp. relicta | Warra Broad-leaved Sally | Plant > Trees | Endangered |
| Eucalyptus cannonii | Capertee Stringybark | Plant > Trees | Vulnerable |
| Eucalyptus canobolensis | Silver-Leaf Candlebark | Plant > Trees | Vulnerable |
| Eucalyptus castrensis | Singleton Mallee | Plant > Mallees | Endangered |
| Eucalyptus copulans | Eucalyptus copulans | Plant > Trees | Endangered |
| Eucalyptus corticosa | Eucalyptus corticosa | Plant > Trees | Vulnerable |
| Eucalyptus dissita | Gibraltar Mallee | Plant > Trees | Vulnerable |
| Eucalyptus fracta | Broken Back Ironbark | Plant > Trees | Vulnerable |
| Eucalyptus glaucina | Slaty Red Gum | Plant > Trees | Vulnerable |
| Eucalyptus imlayensis | Imlay Mallee | Plant > Mallees | Endangered |
| Eucalyptus kartzoffiana | Araluen Gum | Plant > Trees | Vulnerable |
| Eucalyptus langleyi | Albatross Mallee | Plant > Mallees | Vulnerable |
| Eucalyptus leucoxylon subsp. pruinosa | Yellow Gum | Plant > Trees | Vulnerable |
| Eucalyptus macarthurii | Camden Woollybutt | Plant > Trees | Vulnerable |
| Eucalyptus magnificata | Northern Blue Box | Plant > Trees | Endangered |
| Eucalyptus mckieana | McKie's Stringybark | Plant > Trees | Vulnerable |
| Eucalyptus microcodon | Border Mallee | Plant > Mallees | Endangered |
| Eucalyptus nicholii | Narrow-leaved Black Peppermint | Plant > Trees | Vulnerable |
| Eucalyptus oblonga - endangered population | Eucalyptus oblonga (Narrow-leaved Stringybark) population at Bateau Bay | Plant > Endangered Populations | Endangered Population |
| Eucalyptus oresbia | Small-fruited Mountain Gum | Plant > Trees | Vulnerable |
| Eucalyptus pachycalyx subsp. banyabba | Banyabba Shiny-barked Gum | Plant > Trees | Endangered |
| Eucalyptus parramattensis subsp. decadens | Eucalyptus parramattensis subsp. decadens | Plant > Trees | Vulnerable |
| Eucalyptus parramattensis subsp. parramattensis - endangered population | Eucalyptus parramattensis subsp. parramattensis population in the Wyong and Lake Macquarie LGAs | Plant > Endangered Populations | Endangered Population |
| Eucalyptus parvula | Small-leaved Gum | Plant > Mallees | Vulnerable |
| Eucalyptus pulverulenta | Silver-leafed Gum | Plant > Mallees | Vulnerable |
| Eucalyptus pumila | Pokolbn Mallee | Plant > Mallees | Vulnerable |
| Eucalyptus recurva | Mongarlowe Mallee | Plant > Mallees | Endangered |
| Eucalyptus robertsonii subsp. hemisphaerica | Robertson's Peppermint | Plant > Trees | Vulnerable |
| Eucalyptus rubida subsp. barbigerorum | Blackbutt Candlebark | Plant > Trees | Vulnerable |
| Eucalyptus saxatilis | Suggan Buggan Mallee | Plant > Mallees | Endangered |
| Eucalyptus saxicola | Mt Canobolas Box | Plant > Trees | Endangered |
| Eucalyptus scoparia | Wallangarra White Gum | Plant > Trees | Endangered |
| Eucalyptus seeana - endangered population | Narrow-leaved Red Gum population in the Greater Taree LGA | Plant > Endangered Populations | Endangered Population |
| Eucalyptus sp. Howes Swamp Creek | Eucalyptus sp. Howes Swamp Creek | Plant > Trees | Endangered Ecological Community |
| Eucalyptus spp. Cattai | Eucalyptus sp. Cattai | Plant > Trees | Endangered |
| Eucalyptus sturgissiana | Ettrema Mallee | Plant > Mallees | Vulnerable |
| Eucalyptus tetrapleura | Square-fruited Ironbark | Plant > Trees | Vulnerable |
| Euchiton nitidulus | Shining Cudweed | Plant > Herbs and Forbs | Vulnerable |
| Eudyptula minor population - endangered population | Little Penguin population in the Manly point area | Animal > Endangered Populations | Endangered Population |
| Eulamprus leuraensis | Blue Mountains Water Skink | Animal > Reptiles | Endangered |
| Euphorbia sarcostemmoides | Climbing Caustic | Plant > Epiphytes and climbers | Endangered |
| Euphrasia bella | Pretty Eyebright | Plant > Herbs and Forbs | Vulnerable |
| Euphrasia bowdeniae | Euphrasia bowdeniae | Plant > Herbs and Forbs | Vulnerable |
| Euphrasia ciliolata | Polblue Eyebright | Plant > Herbs and Forbs | Vulnerable |
| Euphrasia collina subsp. muelleri | Mueller's Eyebright | Plant > Herbs and Forbs | Endangered |
| Euphrasia orthocheila subsp. peraspera | Tenterfield Eyebright | Plant > Herbs and Forbs | Endangered |
| Euphrasia scabra | Rough Eyebright | Plant > Herbs and Forbs | Endangered |
| Falco hypoleucos | Grey Falcon | Animal > Birds | Vulnerable |
| Falsistrellus tasmaniensis | Eastern False Pipistrelle | Animal > Bats | Vulnerable |
| Floydia praealta | Ball Nut | Plant > Trees | Vulnerable |
| Fontainea australis | Southern Fontainea | Plant > Shrubs | Vulnerable |
| Fontainea oraria | Coastal Fontainea | Plant > Shrubs | Endangered |
| Fregetta grallaria | White-bellied Storm-petrel | Animal > Birds | Vulnerable |
| Freshwater wetlands on coastal floodplains of the NSW North Coast, Sydney Basin and South East Corner bioregions | Freshwater wetlands on coastal floodplains | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Furina dunmalli | Dunmall's Snake | Animal > Reptiles | Vulnerable (Commonwealth listed only) |
| Fuzzy Box on alluvials of South West Slopes, Darling Riverine Plains & the Brigalow Belt South | Fuzzy Box on alluvials of South West Slopes, Darling Riverine Plains & the Brigalow Belt South | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Galium australe | Tangled Bedstraw | Plant > Herbs and Forbs | Endangered |
| Gallirallus sylvestris | Lord Howe Woodhen | Animal > Birds | Endangered |
| Gaultheria viridicarpa subsp. merinoensis | Mt Merino Waxberry | Plant > Shrubs | Vulnerable |
| Gaultheria viridicarpa subsp. viridicarpa | Green Waxberry | Plant > Shrubs | Vulnerable |
| Geijera paniculata | Axebreaker | Plant > Trees | Endangered |
| Geniostoma huttonii | Hutton's Geniostoma | Plant > Shrubs | Endangered |
| Genoplesium baueri | Bauer's Midge Orchid | Plant > Orchids | Vulnerable |
| Genoplesium insignis | Variable Midge Orchid | Plant > Orchids | Endangered |
| Genoplesium plumosum | Tallong Midge Orchid | Plant > Orchids | Critically Endangered |
| Genoplesium rhyoliticum | Rhyolite Midge Orchid | Plant > Orchids | Endangered |
| Genoplesium superbum | Genoplesium superbum | Plant > Orchids | Endangered |
| Genoplesium vernale | East Lynne Midge Orchid | Plant > Orchids | Vulnerable |
| Genowlan Point Allocasuarina nana Heathland | Genowlan Point Allocasuarina nana Heathland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Gentiana baeuerlenii | Baeuerlen's Gentian | Plant > Herbs and Forbs | Endangered |
| Gentiana bredboensis | Bredbo Gentian | Plant > Herbs and Forbs | Endangered |
| Gentiana wingecarribiensis | Wingecarribee Gentian | Plant > Herbs and Forbs | Endangered |
| Gentiana wissmannii | New England Gentian | Plant > Herbs and Forbs | Vulnerable |
| Geodorum densiflorum | Pink Nodding Orchid | Plant > Orchids | Endangered |
| Geophaps scripta | Squatter Pigeon | Animal > Birds | Endangered |
| Gingidia montana | Mountain Angelica | Plant > Herbs and Forbs | Endangered |
| Glossopsitta porphyrocephala | Purple-crowned Lorikeet | Animal > Birds | Vulnerable |
| Glycine clandestina - endangered population | Nambucca Glycine population in the Nambucca LGA | Plant > Endangered Populations | Endangered Population |
| Goodenia macbarronii | Narrow Goodenia | Plant > Herbs and Forbs | Not listed |
| Goodenia nocoleche | Nocoleche Goodenia | Plant > Herbs and Forbs | Endangered |
| Goodenia occidentalis | Western Goodenia | Plant > Herbs and Forbs | Endangered |
| Gossia fragrantissima | Sweet Myrtle | Plant > Shrubs | Endangered |
| Grammitis stenophylla | Narrow-leaf Finger Fern | Plant > Ferns and Cycads | Endangered |
| Grantiella picta | Painted Honeyeater | Animal > Birds | Vulnerable |
| Grevillea acanthifolia subsp. paludosa | Bog Grevillea | Plant > Shrubs | Endangered |
| Grevillea banyabba | Banyabba Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea beadleana | Beadle's Grevillea | Plant > Shrubs | Endangered |
| Grevillea caleyi | Caley's Grevillea | Plant > Shrubs | Endangered |
| Grevillea divaricata | Grevillea divaricata | Plant > Shrubs | Endangered |
| Grevillea evansiana | Evans Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea guthrieana | Guthrie's Grevillea | Plant > Shrubs | Endangered |
| Grevillea hilliana | White Yiel Yiel | Plant > Trees | Endangered |
| Grevillea iaspicula | Wee Jasper Grevillea | Plant > Shrubs | Endangered |
| Grevillea juniperina subsp. juniperina | Juniper-leaved Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea kennedyana | Flame Spider Flower | Plant > Shrubs | Vulnerable |
| Grevillea masonii | Mason's Grevillea | Plant > Shrubs | Endangered |
| Grevillea mollis | Soft Grevillea | Plant > Shrubs | Endangered |
| Grevillea molyneuxii | Wingello Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea obtusiflora | Grevillea obtusiflora | Plant > Shrubs | Endangered |
| Grevillea parviflora subsp. parviflora | Small-flower Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea parviflora subsp. supplicans | Grevillea parviflora subsp. supplicans | Plant > Shrubs | Endangered |
| Grevillea quadricauda | Four-tailed Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea renwickiana | Nerriga Grevillea | Plant > Shrubs | Endangered |
| Grevillea rhizomatosa | Gibraltar Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea rivularis | Carrington Falls Grevillea | Plant > Shrubs | Endangered |
| Grevillea scortechinii subsp. sarmentosa | Backwater Grevillea | Plant > Shrubs | Vulnerable |
| Grevillea shiressii | Grevillea shiressii | Plant > Shrubs | Vulnerable |
| Grevillea wilkinsonii | Tumut Grevillea | Plant > Shrubs | Endangered |
| Grus rubicunda | Brolga | Animal > Birds | Vulnerable |
| Gygis alba | White Tern | Animal > Birds | Vulnerable |
| Gyrostemon thesioides | Gyrostemon thesioides | Plant > Shrubs | Endangered |
| Haematopus fuliginosus | Sooty Oystercatcher | Animal > Birds | Vulnerable |
| Haematopus longirostris | Pied Oystercatcher | Animal > Birds | Vulnerable |
| Hakea archaeoides | Big Nellie Hakea | Plant > Shrubs | Vulnerable |
| Hakea dohertyi | Kowmung Hakea | Plant > Shrubs | Endangered |
| Hakea fraseri | Gorge Hakea | Plant > Shrubs | Vulnerable |
| Hakea pulvinifera | Lake Keepit Hakea | Plant > Shrubs | Endangered |
| Haloragis exalata subsp. exalata | Square Raspwort | Plant > Shrubs | Vulnerable |
| Haloragis exalata subsp. velutina | Tall Velvet Sea-berry | Plant > Shrubs | Vulnerable |
| Haloragodendron lucasii | Haloragodendron lucasii | Plant > Shrubs | Endangered |
| Halosarcia lylei low open-shrubland in the Murray Darling Depression Bioregion | Halosarcia lylei low open-shrubland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Hamirostra melanosternon | Black-breasted Buzzard | Animal > Birds | Vulnerable |
| Hedyotis galioides | Sweet False Galium | Plant > Herbs and Forbs | Endangered |
| Heleioporus australiacus | Giant Burrowing Frog | Animal > Amphibians | Vulnerable |
| Hibbertia hexandra | Tree Guinea Flower | Plant > Shrubs | Endangered |
| Hibbertia marginata | Bordered Guinea Flower | Plant > Shrubs | Vulnerable |
| Hibbertia procumbens | Spreading Guinea Flower | Plant > Shrubs | Endangered |
| Hibbertia puberula | Hibbertia puberula | Plant > Shrubs | Endangered |
| Hibbertia sp. nov. 'Menai' | Hibbertia sp. nov. 'Menai' | Plant > Shrubs | Endangered |
| Hibbertia superans | Hibbertia superans | Plant > Shrubs | Endangered |
| Hibbertia tenuifolia | Narrow-leaved Guinea Flower | Plant > Shrubs | Endangered |
| Hicksbeachia pinnatifolia | Red Boppel Nut | Plant > Trees | Vulnerable |
| Homopholis belsonii | Belson's Panic | Plant > Herbs and Forbs | Vulnerable (Commonwealth listed only) |
| Homoranthus binghiensis | Binghi Homoranthus | Plant > Shrubs | Endangered |
| Homoranthus bornhardtiensis | Barraba Homoranthus | Plant > Shrubs | Endangered |
| Homoranthus croftianus | Bolivia Homoranthus | Plant > Shrubs | Endangered |
| Homoranthus darwinioides | Homoranthus darwinioides | Plant > Shrubs | Vulnerable |
| Homoranthus lunatus | Crescent-leaved Homoranthus | Plant > Shrubs | Vulnerable |
| Homoranthus prolixus | Granite Homoranthus | Plant > Shrubs | Vulnerable |
| Hoplocephalus bitorquatus | Pale-headed Snake | Animal > Reptiles | Vulnerable |
| Hoplocephalus bungaroides | Broad-headed Snake | Animal > Reptiles | Endangered |
| Hoplocephalus stephensii | Stephens' Banded Snake | Animal > Reptiles | Vulnerable |
| Howell Shrublands in the New England Tablelands and Nandewar Bioregions | Howell Shrublands | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Hunter Lowland Redgum Forest in the Sydney Basin and NSW North Coast Bioregions | Hunter Lowland Redgum Forest in the Sydney Basin and NSW North Coast Bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Hunter Valley Weeping Myall Woodland of the Sydney Basin Bioregion | Hunter Valley Weeping Myall Woodland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Hygrocybe anomala var. ianthinomarginata | Hygrocybe anomala var. ianthinomarginata | Fungi > Fungi | Vulnerable |
| Hygrocybe aurantipes | Hygrocybe aurantipes | Fungi > Fungi | Vulnerable |
| Hygrocybe austropratensis | Hygrocybe austropratensis | Fungi > Fungi | Endangered |
| Hygrocybe collucera | Hygrocybe collucera | Fungi > Fungi | Endangered |
| Hygrocybe griseoramosa | Hygrocybe griseoramosa | Fungi > Fungi | Endangered |
| Hygrocybe lanecovensis | Hygrocybe lanecovensis | Fungi > Fungi | Endangered |
| Hygrocybe reesiae | Hygrocybe reesiae | Fungi > Fungi | Vulnerable |
| Hygrocybe rubronivea | Hygrocybe rubronivea | Fungi > Fungi | Vulnerable |
| Hygrocybeae Community of Lane Cove Bushland Park | Hygrocybeae Community of Lane Cove Bushland Park | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Hylacola cauta | Shy Heathwren | Animal > Birds | Vulnerable |
| Hypsela sessiliflora | Hypsela sessiliflora | Plant > Herbs and Forbs | Endangered |
| Illawarra Lowlands Grassy Woodland in the Sydney Basin Bioregion | Illawarra Lowlands Grassy Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Illawarra Subtropical Rainforest in the Sydney Basin Bioregion | Illawarra Subtropical Rainforest in the Sydney | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Indigofera baileyi | Bailey's Indigo | Plant > Herbs and Forbs | Endangered |
| Indigofera efoliata | Leafless Indigo | Plant > Shrubs | Endangered |
| Indigofera helmsii | Indigo | Plant > Shrubs | Endangered |
| Indigofera leucotricha | Silver Indigo | Plant > Shrubs | Endangered |
| Indigofera longibractea | Showy Indigo | Plant > Shrubs | Endangered |
| Inland Grey Box Woodland in the Riverina, NSW South Western Slopes, Cobar Peneplain, Nandewar and Brigalow Belt South Bioregions | Inland Grey Box Woodland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Invasion and establishment of Scotch broom | Invasion and establishment of Scotch broom | Plant > Weed | Key Threatening Process |
| Ipomoea diamantinensis | Desert Cow-Vine | Plant > Herbs and Forbs | Endangered |
| Ipomoea polymorpha | Silky Cow-Vine | Plant > Herbs and Forbs | Endangered |
| Irediparra gallinacea | Comb-crested Jacana | Animal > Birds | Vulnerable |
| Irenepharsus magicus | Elusive Cress | Plant > Herbs and Forbs | Endangered |
| Irenepharsus trypherus | Illawarra Irene | Plant > Herbs and Forbs | Endangered |
| Isoglossa eranthemoides | Isoglossa | Plant > Herbs and Forbs | Endangered |
| Isoodon obesulus obesulus | Southern Brown Bandicoot (eastern) | Animal > Marsupials | Endangered |
| Isopogon fletcheri | Fletcher’s Drumstricks | Plant > Shrubs | Vulnerable |
| Ixobrychus flavicollis | Black Bittern | Animal > Birds | Vulnerable |
| Kennedia retrorsa | Kennedia retrorsa | Plant > Herbs and Forbs | Vulnerable |
| Keraudrenia corrolata var. denticulata - endangered population | Keraudrenia corrolata var. denticulata population in the Hawkesbury LGA | Plant > Endangered Populations | Endangered Population |
| Kerivoula papuensis | Golden-tipped Bat | Animal > Bats | Vulnerable |
| Kincumber Scribbly Gum Forest in the Sydney Basin bioregion | Kincumber Scribbly Gum Forest | Community > Threatened Ecological Communities | Critically Endangered Ecological Community |
| Kippistia suaedifolia | Fleshy Minuria | Plant > Shrubs | Endangered |
| Kunzea cambagei | Cambage Kunzea | Plant > Shrubs | Vulnerable |
| Kunzea rupestris | Kunzea rupestris | Plant > Shrubs | Vulnerable |
| Kurnell Dune Forest in the Sutherland Shire and City of Rockdale | Kurnell Dune Forest in the Sutherland Shire and City of Rockdale | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Kurri Sand Swamp Woodland in the Sydney Basin Bioregion | Kurri Sand Swamp Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lagunaria patersonia swamp forest on Lord Howe Island | Sallywood Swamp Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lasiopetalum behrii | Pink Velvet Bush | Plant > Shrubs | Endangered |
| Lasiopetalum joyceae | Lasiopetalum joyceae | Plant > Shrubs | Vulnerable |
| Lasiopetalum longistamineum | Lasiopetalum longistamineum | Plant > Shrubs | Vulnerable |
| Lasiorhinus latifrons | Southern Hairy-nosed Wombat | Animal > Marsupials | Endangered |
| Lastreopsis hispida | Bristly Shield Fern | Plant > Ferns and Cycads | Endangered |
| Lathamus discolor | Swift Parrot | Animal > Birds | Endangered |
| Leggadina forresti | Forrest's Mouse | Animal > Rodents | Vulnerable |
| Leionema lachnaeoides | Leionema lachnaeoides | Plant > Shrubs | Endangered |
| Leionema lamprophyllum subsp. obovatum population in the Hunter Catchment | Leionema lamprophyllum subsp. obovatum population in the Hunter Catchment | Plant > Shrubs | Endangered Population |
| Leionema ralstonii | Ralston’s Leionema | Plant > Shrubs | Vulnerable |
| Leionema sympetalum | Rylstone Bell | Plant > Shrubs | Vulnerable |
| Leipoa ocellata | Malleefowl | Animal > Birds | Endangered |
| Lepiderema pulchella | Fine-leaved Tuckeroo | Plant > Trees | Vulnerable |
| Lepidium aschersonii | Spiny Peppercress | Plant > Herbs and Forbs | Vulnerable |
| Lepidium hyssopifolium | Aromatic Peppercress | Plant > Herbs and Forbs | Endangered |
| Lepidium monoplocoides | Winged Peppercress | Plant > Herbs and Forbs | Endangered |
| Lepidium peregrinum | Wandering Pepper Cress | Plant > Herbs and Forbs | Endangered |
| Lepidium pseudopapillosum | Formbe Peppercress | Plant > Herbs and Forbs | Endangered |
| Lepidosperma evansianum | Evans Sedge | Plant > Herbs and Forbs | Vulnerable |
| Leptorhynchos orientalis | Lanky Buttons | Plant > Herbs and Forbs | Endangered |
| Leptorhynchos waitzia | Button Immortelle | Plant > Herbs and Forbs | Endangered |
| Leptospermum deanei | Leptospermum deanei | Plant > Shrubs | Vulnerable |
| Leptospermum thompsonii | Monga Tea Tree | Plant > Shrubs | Vulnerable |
| Lerista xanthura | Yellow-tailed Plains Slider | Animal > Reptiles | Vulnerable |
| Lespedeza juncea subsp. sericea - endangered population | Lespedeza juncea subsp. sericea population in the Wollongong LGA | Plant > Endangered Populations | Endangered Population |
| Leucopogon confertus | Torrington Beard-heath | Plant > Shrubs | Endangered |
| Leucopogon exolasius | Woronora Beard-heath | Plant > Shrubs | Vulnerable |
| Leucopogon fletcheri subsp. fletcheri | Leucopogon fletcheri subsp. fletcheri | Plant > Shrubs | Endangered |
| Liasis stimsoni | Stimson's Python | Animal > Reptiles | Vulnerable |
| Lichenostomus cratitius | Purple-gaped Honeyeater | Animal > Birds | Vulnerable |
| Lichenostomus fasciogularis | Mangrove Honeyeater | Animal > Birds | Vulnerable |
| Limicola falcinellus | Broad-billed Sandpiper | Animal > Birds | Vulnerable |
| Limosa limosa | Black-tailed Godwit | Animal > Birds | Vulnerable |
| Lindernia alsinoides | Noah's False Chickweed | Plant > Herbs and Forbs | Endangered |
| Lindsaea brachypoda | Short-footed Screw Fern | Plant > Ferns and Cycads | Endangered |
| Lindsaea fraseri | Fraser's Screw Fern | Plant > Ferns and Cycads | Endangered |
| Lindsaea incisa | Slender Screw Fern | Plant > Ferns and Cycads | Endangered |
| Litoria aurea | Green and Golden Bell Frog | Animal > Amphibians | Endangered |
| Litoria booroolongensis | Booroolong Frog | Animal > Amphibians | Endangered |
| Litoria brevipalmata | Green-thighed Frog | Animal > Amphibians | Vulnerable |
| Litoria castanea | Yellow-spotted Bell Frog | Animal > Amphibians | Endangered |
| Litoria daviesae | Davies Tree Frog | Animal > Amphibians | Vulnerable |
| Litoria littlejohni | Littlejohn’s Tree Frog | Animal > Amphibians | Vulnerable |
| Litoria olongburensis | Olongburra Frog | Animal > Amphibians | Vulnerable |
| Litoria piperata | Peppered Frog | Animal > Amphibians | Vulnerable |
| Litoria raniformis | Southern Bell Frog | Animal > Amphibians | Endangered |
| Litoria spenceri | Spotted Tree Frog | Animal > Amphibians | Endangered |
| Litoria subglandulosa | Glandular Frog | Animal > Amphibians | Vulnerable |
| Litoria verreauxii alpina | Alpine Tree Frog | Animal > Amphibians | Endangered |
| Littoral Rainforest in the NSW North Coast, Sydney Basin and South East Corner Bioregions | Littoral Rainforest in the NSW North Coast, Sydney Basin and South East Corner Bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Long-nosed potoroo - endangered population | Long-nosed potoroo population at Cobaki Lakes and Tweed Heads West | Animal > Endangered Populations | Endangered Population |
| Lophoictinia isura | Square-tailed Kite | Animal > Birds | Vulnerable |
| Low woodland with heathland on indurated sand at Norah Head | Low woodland with heathland on indurated sand at Norah Head | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lower Hunter Spotted Gum - Ironbark Forest in the Sydney Basin Bioregion | Lower Hunter Spotted Gum - Ironbark Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lower Hunter Valley Dry Rainforest in the Sydney Basin and NSW North Coast bioregions | Lower Hunter Valley Dry Rainforest in the Sydney Basin and NSW North Coast bioregions | Community > Threatened Ecological Communities | Vulnerable |
| Lowland Grassy Woodland in the South East Corner Bioregion | Lowland Grassy Woodland in the South East Corner Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lowland Rainforest in NSW North Coast and Sydney Basin Bioregion | Lowland Rainforest in NSW North Coast and Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lowland Rainforest on Floodplain in the New South Wales North Coast Bioregion | Lowland Rainforest on Floodplain | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Lysimachia vulgaris var. davurica | Yellow Loosestrife | Plant > Herbs and Forbs | Endangered |
| Macadamia tetraphylla | Rough-shelled Bush Nut | Plant > Trees | Vulnerable |
| Macronectes giganteus | Southern Giant-Petrel | Animal > Birds | Endangered |
| Macronectes halli | Northern Giant-Petrel | Animal > Birds | Vulnerable |
| Macropus dorsalis | Black-striped Wallaby | Animal > Marsupials | Endangered |
| Macropus parma | Parma Wallaby | Animal > Marsupials | Vulnerable |
| Macrozamia humilis | Inverell Cycad | Plant > Ferns and Cycads | Endangered |
| Macrozamia johnsonii | Johnson’s Cycad | Plant > Ferns and Cycads | Endangered |
| Maireana cheelii | Chariot Wheels | Plant > Herbs and Forbs | Vulnerable |
| Manorina melanotis | Black-eared Miner | Animal > Birds | Endangered |
| Maroota Sands Swamp Forest | Maroota Sands Swamp Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Marsdenia longiloba | Slender Marsdenia | Plant > Epiphytes and climbers | Endangered |
| Marsdenia viridiflora subsp. viridiflora - endangered population | Marsdenia viridiflora subsp. viridiflora in the Bankstown, Blacktown, Camden, Campbelltown, Fairfield, Holroyd, Liverpool and Penrith local government areas | Plant > Endangered Populations | Endangered Population |
| Mastacomys fuscus | Broad-toothed Rat | Animal > Rodents | Vulnerable |
| Mastacomys fuscus - endangered population | Broad-toothed Rat at Barrington Tops in the Gloucester, Scone and Dungog LGAs | Animal > Endangered Populations | Endangered Population |
| Maundia triglochinoides | Maundia triglochinoides | Plant > Herbs and Forbs | Vulnerable |
| McKies Stringybark/Blackbutt Open Forest in the Nandewar and New England Tableland Bioregions | McKies Stringybark/Blackbutt Open Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Megaptera novaeangliae | Humpback Whale | Animal > Marine Mammals | Vulnerable |
| Melaleuca armillaris Tall Shrubland in the Sydney Basin Bioregion | Melaleuca armillaris Tall Shrubland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Melaleuca biconvexa | Biconvex Paperbark | Plant > Trees | Vulnerable |
| Melaleuca deanei | Deane's Paperbark | Plant > Shrubs | Vulnerable |
| Melaleuca groveana | Grove's Paperbark | Plant > Shrubs | Vulnerable |
| Melaleuca irbyana | Weeping Paperbark | Plant > Trees | Endangered |
| Melaleuca sp. Megalong Valley | Megalong Valley Bottlebrush | Plant > Shrubs | Vulnerable |
| Melanodryas cucullata cucullata | Hooded Robin (south-eastern form) | Animal > Birds | Vulnerable |
| Melichrus hirsutus | Hairy Melichrus | Plant > Shrubs | Endangered |
| Melichrus sp. 'Gibberagee' | Narrow-leaf Melichrus | Plant > Shrubs | Endangered |
| Melicope vitiflora | Coast Euodia | Plant > Trees | Endangered |
| Melithreptus gularis gularis | Black-chinned Honeyeater (eastern subspecies) | Animal > Birds | Vulnerable |
| Menippus fugitivus - endangered population | Menippus fugitivus (a beetle) population in the Sutherland Shire | Animal > Endangered Populations | Endangered Population |
| Menura alberti | Albert's Lyrebird | Animal > Birds | Vulnerable |
| Meridolum corneovirens | Cumberland Land Snail | Animal > Invertebrates | Endangered |
| Micromyrtus blakelyi | Micromyrtus blakelyi | Plant > Shrubs | Vulnerable |
| Micromyrtus grandis | Severn River Heath-myrtle | Plant > Shrubs | Endangered |
| Micromyrtus minutiflora | Micromyrtus minutiflora | Plant > Shrubs | Endangered |
| Microstrobos fitzgeraldii | Dwarf Mountain Pine | Plant > Shrubs | Endangered |
| Microtis angusii | Angus's Onion Orchid | Plant > Orchids | Endangered |
| Milton Ulladulla Subtropical Rainforest in the Sydney Basin Bioregion | Milton Ulladulla Subtropical Rainforest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Miniopterus australis | Little Bentwing-bat | Animal > Bats | Vulnerable |
| Miniopterus schreibersii oceanensis | Eastern Bentwing-bat | Animal > Bats | Vulnerable |
| Mitrasacme pygmaea | Pygmy Bishop's Hat | Plant > Herbs and Forbs | Endangered |
| Mixophyes balbus | Stuttering Barrred Frog | Animal > Amphibians | Endangered |
| Mixophyes fleayi | Fleay's Barred Frog | Animal > Amphibians | Endangered |
| Mixophyes iteratus | Giant Barred Frog | Animal > Amphibians | Endangered |
| Moist Shale Woodland in the Sydney Basin Bioregion | Moist Shale Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Monarcha leucotis | White-eared Monarch | Animal > Birds | Vulnerable |
| Monotaxis macrophylla | Large-leafed Monotaxis | Plant > Herbs and Forbs | Endangered |
| Monotoca rotundifolia | Trailing Monotoca | Plant > Shrubs | Endangered |
| Montane Peatlands and Swamps of the New England Tableland, NSW North Coast, Sydney Basin, South East Corner, South Eastern Highlands and Australian Alps | Montane Peatlands and Swamps | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Mormopterus 'Species 6' | Hairy-nosed Freetail Bat | Animal > Bats | Endangered |
| Mormopterus beccarii | Beccari's Freetail-bat | Animal > Bats | Vulnerable |
| Mormopterus norfolkensis | Eastern Freetail-bat | Animal > Bats | Vulnerable |
| Mount Gibraltar Forest in the Sydney Basin Bioregion | Mount Gibraltar Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Mt Canobolas Xanthoparmelia Lichen Community | Mt Canobolas Xanthoparmelia Lichen Community | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Muehlenbeckia costata | Scrambling Lignum | Plant > Epiphytes and climbers | Vulnerable |
| Muellerina myrtifolia | Myrtle-leaf Mistletoe | Plant > Epiphytes and climbers | Endangered |
| Myall Woodland in the Darling Riverine Plains, Brigalow Belt
South, Cobar Peneplain, Murray-Darling Depression, Riverina and NSW South western Slopes bioregions | Myall Woodland in the Darling Riverine Plains, Brigalow Belt
South, Cobar Peneplain, Murray-Darling Depression, Riverina and NSW South western Slopes bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Myotis macropus (formally Myotis adversus) | Large-footed Myotis | Animal > Bats | Vulnerable |
| Native Vegetation on Cracking Clay Soils of the Liverpool Plains | Native Vegetation on Cracking Clay Soils of the Liverpool Plains | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Natural Temperate Grassland of the Southern Tablelands (NSW and ACT) | Natural Temperate Grassland of the Southern Tablelands (NSW and ACT) | Community > Threatened Ecological Communities | Not listed |
| Nematolepis rhytidophylla | Nalbaugh Nematolepis | Plant > Shrubs | Vulnerable |
| Neoastelia spectabilis | Silver Sword Lily | Plant > Herbs and Forbs | Vulnerable |
| Neobatrachus pictus | Painted Burrowing Frog | Animal > Amphibians | Endangered |
| Neophema chrysogaster | Orange-bellied Parrot | Animal > Birds | Critically Endangered |
| Neophema pulchella | Turquoise Parrot | Animal > Birds | Vulnerable |
| Neophema splendida | Scarlet-chested Parrot | Animal > Birds | Vulnerable |
| Nettapus coromandelianus | Cotton Pygmy-goose | Animal > Birds | Endangered |
| New England Peppermint (Eucalyptus nova-anglica) Woodland on Basalts and Sediments in the New England Tableland Bioregion | New England Peppermint (Eucalyptus nova-anglica) Woodland on Basalts and Sediments in the New England Tableland Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Newnes Plateau Shrub Swamp in the Sydney Basin Bioregion | Newnes Plateau Shrub Swamp in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Niemeyera chartacea | Smooth-leaved Plum | Plant > Trees | Endangered |
| Ningaui yvonneae | Southern Ningaui | Animal > Marsupials | Vulnerable |
| Ninox connivens | Barking Owl | Animal > Birds | Vulnerable |
| Ninox strenua | Powerful Owl | Animal > Birds | Vulnerable |
| Nitella partita | Nitella partita | Algae > Algae, Mosses and Lichens | Endangered |
| Notomys fuscus | Dusky Hopping-mouse | Animal > Rodents | Endangered |
| Nurus atlas | Atlas Rainforest Ground-beetle | Animal > Invertebrates | Endangered |
| Nurus brevis | Shorter Rainforest Ground-beetle | Animal > Invertebrates | Endangered |
| Nyctimene robinsoni | Eastern Tube-nosed Bat | Animal > Bats | Vulnerable |
| Nyctophilus bifax | Eastern Long-eared Bat | Animal > Bats | Vulnerable |
| Nyctophilus timoriensis | Greater Long-eared Bat (south eastern form) | Animal > Bats | Vulnerable |
| O’Hares Creek Shale Forest | O’Hares Creek Shale Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Oberonia complanata | Yellow-flowered King of the Fairies | Plant > Orchids | Endangered |
| Oberonia titania | Red-flowered King of the Fairies | Plant > Orchids | Vulnerable |
| Ochrosia moorei | Southern Ochrosia | Plant > Trees | Endangered |
| Ocybadistes knightorum | Black Grass-dart | Animal > Invertebrates | Endangered |
| Oedura rhombifer | Zigzag Velvet Gecko | Animal > Reptiles | Endangered |
| Olax angulata | Square-stemmed Olax | Plant > Shrubs | Vulnerable |
| Olearia cordata | Olearia cordata | Plant > Shrubs | Vulnerable |
| Olearia flocktoniae | Dorrigo Daisy Bush | Plant > Shrubs | Endangered |
| Osteocarpum scleropterum | Squash Bush | Plant > Shrubs | Endangered |
| Owenia cepiodora | Onion Cedar | Plant > Trees | Vulnerable |
| Oxyura australis | Blue-billed Duck | Animal > Birds | Vulnerable |
| Ozothamnus tesselatus | Ozothamnus tesselatus | Plant > Shrubs | Vulnerable |
| Pachycephala inornata | Gilbert's Whistler | Animal > Birds | Vulnerable |
| Pachycephala olivacea | Olive Whistler | Animal > Birds | Vulnerable |
| Pachycephala pectoralis contempta | Lord Howe Island Golden Whistler | Animal > Birds | Vulnerable |
| Pachycephala rufogularis | Red-lored Whistler | Animal > Birds | Endangered |
| Pandion haliaetus | Osprey | Animal > Birds | Vulnerable |
| Panesthia lata | Lord Howe Is Wood-eating Cockroach | Animal > Invertebrates | Endangered |
| Paralucia spinifera | Purple Copper Butterfly ( Bathurst Copper Butterfly) | Animal > Invertebrates | Endangered |
| Parsonsia dorrigoensis | Milky Silkpod | Plant > Epiphytes and climbers | Vulnerable |
| Pedionomus torquatus | Plains-wanderer | Animal > Birds | Endangered |
| Perameles nasuta population - endangered population | Long-nosed Bandicoot population at North Head | Animal > Endangered Populations | Endangered Population |
| Pericryptodrilus nanus | Lord Howe Earthworm | Animal > Invertebrates | Endangered |
| Peristeranthus hillii | Brown Fairy-chain Orchid | Plant > Orchids | Vulnerable |
| Persicaria elatior | Tall Knotweed | Plant > Herbs and Forbs | Vulnerable |
| Persoonia acerosa | Needle Geebung | Plant > Shrubs | Vulnerable |
| Persoonia bargoensis | Bargo Geebung | Plant > Shrubs | Endangered |
| Persoonia glaucescens | Mittagong Geebung | Plant > Shrubs | Endangered |
| Persoonia hindii | Persoonia hindii | Plant > Shrubs | Endangered |
| Persoonia hirsuta | Hairy Geebung | Plant > Shrubs | Endangered |
| Persoonia marginata | Clandulla Geebung | Plant > Shrubs | Vulnerable |
| Persoonia mollis subsp. maxima | Persoonia mollis subsp. maxima | Plant > Shrubs | Endangered |
| Persoonia nutans | Nodding Geebung | Plant > Shrubs | Endangered |
| Persoonia pauciflora | North Rothbury Persoonia | Plant > Shrubs | Endangered |
| Petalura gigantea | Giant Dragonfly | Animal > Invertebrates | Endangered |
| Petaurides volans - endangered population | Greater Glider population in the Bingi-Congo area of the Eurobodalla LGA | Animal > Endangered Populations | Endangered Population |
| Petaurus australis | Yellow-bellied Glider | Animal > Marsupials | Vulnerable |
| Petaurus australis - endangered population | Yellow-bellied glider endangered population on the Bago Plateau | Animal > Marsupials | Endangered Population |
| Petaurus norfolcensis | Squirrel Glider | Animal > Marsupials | Vulnerable |
| Petaurus norfolcensis - endangered population Barrenjoey Peninsula | Squirrel Glider population on the Barrenjoey Peninsula, north of Bushrangers Hill | Animal > Endangered Populations | Endangered Population |
| Petaurus norfolcensis - endangered population Wagga Wagga | Squirrel Glider population in the Wagga Wagga LGA | Animal > Endangered Populations | Endangered Population |
| Petrogale penicillata | Brush-tailed Rock-wallaby | Animal > Marsupials | Endangered |
| Petrogale xanthopus | Yellow-footed Rock-wallaby | Animal > Marsupials | Endangered |
| Petroica rodinogaster | Pink Robin | Animal > Birds | Vulnerable |
| Pezoporus wallicus wallicus | Eastern Ground Parrot | Animal > Birds | Vulnerable |
| Phaethon rubricauda | Red-tailed Tropicbird | Animal > Birds | Vulnerable |
| Phaius australis | Southern Swamp Orchid | Plant > Orchids | Endangered |
| Phaius tankervilleae | Lady Tankerville’s Swamp Orchid | Plant > Orchids | Endangered |
| Phaps histrionica | Flock Bronzewing | Animal > Birds | Endangered |
| Phascogale tapoatafa | Brush-tailed Phascogale | Animal > Marsupials | Vulnerable |
| Phascolarctos cinereus | Koala | Animal > Marsupials | Vulnerable |
| Phascolarctos cinereus - endangered population Hawks Nest and Tea Gardens | Koala population in the Hawks Nest and Tea Gardens area | Animal > Endangered Populations | Endangered Population |
| Phascolarctos cinereus - endangered population Pittwater | Koala population in the Pittwater LGA | Animal > Endangered Populations | Endangered Population |
| Phebalium bifidum | Phebalium bifidum | Plant > Shrubs | Endangered |
| Phebalium glandulosum subsp. eglandulosum | Rusty Desert Phebalium | Plant > Shrubs | Endangered |
| Philoria kundagungan | Mountain Frog | Animal > Amphibians | Endangered |
| Philoria loveridgei | Loveridge's Frog | Animal > Amphibians | Endangered |
| Philoria pughi | Philoria pughi | Animal > Amphibians | Endangered |
| Philoria richmondensis | Philoria richmondensis | Animal > Amphibians | Endangered |
| Philoria sphagnicolus | Sphagnum Frog | Animal > Amphibians | Vulnerable |
| Philotheca ericifolia | Philotheca ericifolia | Plant > Shrubs | Vulnerable |
| Philotheca myoporoides subsp. obovatifolia | Mountain Wax-flower | Plant > Shrubs | Endangered |
| Phoebetria fusca | Sooty Albatross | Animal > Birds | Vulnerable |
| Phyllanthus maderaspatensis | Phyllanthus maderaspatensis | Plant > Herbs and Forbs | Endangered |
| Phyllanthus microcladus | Brush Sauropus | Plant > Shrubs | Endangered |
| Phyllodes imperialis southern subspecies | Pink Underwing Moth | Animal > Invertebrates | Endangered |
| Phyllota humifusa | Dwarf Phyllota | Plant > Shrubs | Vulnerable |
| Physeter macrocephalus | Sperm Whale | Animal > Marine Mammals | Vulnerable |
| Picris evae | Hawkweed | Plant > Herbs and Forbs | Vulnerable |
| Pilularia novae-hollandiae | Austral Pillwort | Plant > Ferns and Cycads | Endangered |
| Pimelea axiflora subsp. pubescens | Bungonia Rice-flower | Plant > Shrubs | Endangered |
| Pimelea curviflora var. curviflora | Pimelea curviflora var. curviflora | Plant > Shrubs | Vulnerable |
| Pimelea elongata | Rice Flower | Plant > Herbs and Forbs | Endangered |
| Pimelea serpyllifolia subsp. serpyllifolia | Thyme Rice-Flower | Plant > Shrubs | Endangered |
| Pimelea spicata | Spiked Rice-flower | Plant > Shrubs | Endangered |
| Pimelea venosa | Bolivia Hill Pimelea | Plant > Shrubs | Endangered |
| Pittwater Spotted Gum Forest | Pittwater Spotted Gum Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Placostylus bivaricosus | Lord Howe Placostylus | Animal > Invertebrates | Endangered |
| Planigale maculata | Common Planigale | Animal > Marsupials | Vulnerable |
| Platyzoma microphyllum | Braid Fern | Plant > Ferns and Cycads | Endangered |
| Plectranthus alloplectus | Narrow-leaved Plectranthus | Plant > Herbs and Forbs | Endangered |
| Plectranthus nitidus | Nightcap Plectranthus | Plant > Shrubs | Endangered |
| Plinthanthesis rodwayi | Budawangs Wallaby Grass | Plant > Herbs and Forbs | Endangered |
| Podargus ocellatus | Marbled Frogmouth | Animal > Birds | Vulnerable |
| Poephila cincta cincta | Black-throated Finch (southern subspecies) | Animal > Birds | Endangered |
| Polycarpaea spirostylis subsp. glabra | Polycarpaea spirostylis subsp. glabra | Plant > Herbs and Forbs | Endangered |
| Polygala linariifolia | Native Milkwort | Plant > Herbs and Forbs | Endangered |
| Polystichum moorei | Rock Shield Fern | Plant > Ferns and Cycads | Endangered |
| Polytelis anthopeplus monarchoides | Regent Parrot (eastern subsp.) | Animal > Birds | Endangered |
| Polytelis swainsonii | Superb Parrot | Animal > Birds | Vulnerable |
| Pomaderris adnata | Sublime Point Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris bodalla | Bodalla Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris brunnea | Brown Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris cotoneaster | Cotoneaster Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris delicata | Delicate Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris elachophylla | Lacy Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris gilmourii var. cana | Grey Deua Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris notata | McPherson Range Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris pallida | Pale Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris parrisiae | Parris' Pomaderris | Plant > Shrubs | Vulnerable |
| Pomaderris prunifolia - endangered population | Pomaderris prunifolia (a shrub) population in the Parramatta, Auburn, Strathfield and Bankstown LGAs | Plant > Endangered Populations | Endangered Population |
| Pomaderris queenslandica | Scant Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris reperta | Denman Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris sericea | Silky Pomaderris | Plant > Shrubs | Endangered |
| Pomaderris walshii | Carrington Falls Pomaderris | Plant > Shrubs | Critically Endangered |
| Pomatostomus halli | Hall's Babbler | Animal > Birds | Vulnerable |
| Pomatostomus temporalis temporalis | Grey-crowned Babbler (eastern subspecies) | Animal > Birds | Vulnerable |
| Potorous longipes | Long-footed Potoroo | Animal > Marsupials | Endangered |
| Potorous tridactylus | Long-nosed Potoroo | Animal > Marsupials | Vulnerable |
| Prasophyllum affine | Jervis Bay Leek Orchid | Plant > Orchids | Endangered |
| Prasophyllum bagoensis | Bago Leek Orchid | Plant > Orchids | Endangered |
| Prasophyllum canaliculatum | Prasophyllum canaliculatum | Plant > Orchids | Critically Endangered |
| Prasophyllum fuscum | Slaty Leek Orchid | Plant > Orchids | Vulnerable |
| Prasophyllum innubum | Prasophyllum innubum | Plant > Orchids | Critically Endangered |
| Prasophyllum keltonii | Prasophyllum keltonii | Plant > Orchids | Critically Endangered |
| Prasophyllum petilum | Tarengo Leek Orchid | Plant > Orchids | Endangered |
| Prasophyllum retroflexum | Kiandra Leek Orchid | Plant > Orchids | Vulnerable |
| Prasophyllum sp. ‘Moama’ | Prasophyllum sp. ‘Moama’ | Plant > Orchids | Critically Endangered |
| Prasophyllum sp. Majors Creek | Majors Creek Leek Orchid | Plant > Orchids | Endangered |
| Prasophyllum uroglossum | Wingecarribee Leek Orchid | Plant > Orchids | Endangered |
| Procelsterna cerulea | Grey Ternlet | Animal > Birds | Vulnerable |
| Prostanthera askania | Cut-leaf Mint-bush | Plant > Shrubs | Endangered |
| Prostanthera cineolifera | Singleton Mint Bush | Plant > Shrubs | Vulnerable |
| Prostanthera cryptandroides subsp. Cryptandroides | Wollemi Mint-bush | Plant > Shrubs | Vulnerable |
| Prostanthera densa | Villous Mint-bush | Plant > Shrubs | Vulnerable |
| Prostanthera discolor | Prostanthera discolor | Plant > Shrubs | Vulnerable |
| Prostanthera junonis | Somersby Mintbush | Plant > Shrubs | Endangered |
| Prostanthera marifolia | Seaforth Mintbush | Community > Shrubs | Critically Endangered |
| Prostanthera palustris | Swamp Mint-bush | Plant > Shrubs | Vulnerable |
| Prostanthera spinosa | Spiny Mint-bush | Animal > Endangered Populations | Vulnerable |
| Prostanthera staurophylla (sensu stricto) | Torrington Mint-bush | Plant > Shrubs | Endangered |
| Prostanthera stricta | Prostanthera stricta | Plant > Shrubs | Vulnerable |
| Pseudanthus ovalifolius | Oval-leafed Pseudanthus | Plant > Shrubs | Endangered |
| Pseudomys apodemoides | Silky Mouse | Animal > Rodents | Endangered |
| Pseudomys bolami | Bolam's Mouse | Animal > Rodents | Endangered |
| Pseudomys delicatulus | Delicate Mouse | Animal > Rodents | Endangered |
| Pseudomys fumeus | Smoky Mouse | Animal > Rodents | Endangered |
| Pseudomys gracilicaudatus | Eastern Chestnut Mouse | Animal > Rodents | Vulnerable |
| Pseudomys hermannsburgensis | Sandy Inland Mouse | Animal > Rodents | Vulnerable |
| Pseudomys oralis | Hastings River Mouse | Animal > Rodents | Endangered |
| Pseudomys pilligaensis | Pilliga Mouse | Animal > Rodents | Vulnerable |
| Pseudonaja modesta | Ringed Brown Snake | Animal > Reptiles | Endangered |
| Pseudophryne australis | Red-crowned Toadlet | Animal > Amphibians | Vulnerable |
| Pseudophryne corroboree | Southern Corroboree Frog | Animal > Amphibians | Endangered |
| Pseudophryne pengilleyi | Northern Corroboree Frog | Animal > Amphibians | Vulnerable |
| Psilotum complanatum | Flat Fork Fern | Plant > Ferns and Cycads | Endangered |
| Pterodroma leucoptera leucoptera | Gould's Petrel | Animal > Birds | Endangered |
| Pterodroma neglecta | Kermadec Petrel | Animal > Birds | Vulnerable |
| Pterodroma nigripennis | Black-winged Petrel | Animal > Birds | Vulnerable |
| Pterodroma solandri | Providence Petrel | Animal > Birds | Vulnerable |
| Pteropus alecto | Black Flying-fox | Animal > Bats | Not listed |
| Pteropus poliocephalus | Grey-headed Flying-fox | Animal > Bats | Vulnerable |
| Pterostylis cobarensis | Greenhood Orchid | Plant > Orchids | Vulnerable |
| Pterostylis cucullata | Leafy Greenhood | Plant > Orchids | Vulnerable |
| Pterostylis despectans | Pterostylis despectans | Plant > Orchids | Critically Endangered |
| Pterostylis elegans | Elegant Greenhood | Plant > Orchids | Vulnerable |
| Pterostylis gibbosa | Illawarra Greenhood | Plant > Orchids | Endangered |
| Pterostylis metcalfei | Metcalfe's Greenhood | Plant > Orchids | Endangered |
| Pterostylis nigricans | Dark Greenhood | Plant > Orchids | Vulnerable |
| Pterostylis oreophila | Blue-tongued Greenhood | Plant > Orchids | Critically Endangered |
| Pterostylis pulchella | Waterfall Greenhood | Plant > Orchids | Vulnerable |
| Pterostylis saxicola | Sydney Plains Greenhood | Plant > Orchids | Endangered |
| Pterostylis sp. Botany Bay | Botany Bay Bearded Orchid | Plant > Orchids | Endangered |
| Ptilinopus magnificus | Wompoo Fruit-dove | Animal > Birds | Vulnerable |
| Ptilinopus regina | Rose-crowned Fruit-dove | Animal > Birds | Vulnerable |
| Ptilinopus superbus | Superb Fruit-dove | Animal > Birds | Vulnerable |
| Puffinus assimilis | Little Shearwater | Animal > Birds | Vulnerable |
| Puffinus carneipes | Flesh-footed Shearwater | Animal > Birds | Vulnerable |
| Pultenaea aristata | Prickly Bush-pea | Plant > Shrubs | Vulnerable |
| Pultenaea baeuerlenii | Budawangs Bush-pea | Plant > Shrubs | Vulnerable |
| Pultenaea glabra | Smooth Bush-Pea | Plant > Shrubs | Vulnerable |
| Pultenaea humilis | Dwarf Bush Pea | Plant > Shrubs | Vulnerable |
| Pultenaea humilis | Dwarf Bush Pea | Plant > Shrubs | Vulnerable |
| Pultenaea maritima | Coast Headland Pea | Plant > Shrubs | Vulnerable |
| Pultenaea parrisiae subsp. elusa | Elusive Bush-pea | Plant > Shrubs | Endangered |
| Pultenaea parrisiae subsp. parrisiae | Parris' Bush-pea | Plant > Shrubs | Vulnerable |
| Pultenaea parviflora | Pultenaea parviflora | Plant > Shrubs | Endangered |
| Pultenaea pedunculata | Matted Bush-pea | Plant > Shrubs | Endangered |
| Pultenaea sp. 'Olinda' | Pultenaea sp. 'Olinda' | Plant > Shrubs | Endangered |
| Pultenaea sp. Genowlan Point | Pultenaea sp. Genowlan Point | Plant > Shrubs | Endangered |
| Pultenaea villifera - endangered population | Pultenaea villifera population in the Blue Mountains LGA | Plant > Endangered Populations | Endangered Population |
| Pyrrholaemus brunneus | Redthroat | Animal > Birds | Vulnerable |
| Pyrrholaemus saggitatus | Speckled Warbler | Animal > Birds | Vulnerable |
| Quassia sp. 'Moonee Creek' | Moonee Quassia | Plant > Shrubs | Endangered |
| Quorrobolong Scribbly Gum Woodland in the Sydney Basin Bioregion | Quorrobolong Scribbly Gum Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Ramphotyphlops endoterus | Interior Blind Snake | Animal > Reptiles | Endangered |
| Randia moorei | Spiny Gardenia | Plant > Shrubs | Endangered |
| Ranunculus anemoneus | Anenome Buttercup | Plant > Herbs and Forbs | Vulnerable |
| Rapanea sp. 'Richmond River' | Ripple-leaf Muttonwood | Plant > Shrubs | Endangered |
| Rattus villosissimus | Long-haired Rat | Animal > Rodents | Vulnerable |
| Rhizanthella slateri | Eastern Australian Underground Orchid | Plant > Orchids | Vulnerable |
| Rhizanthella slateri population in the Great Lakes LGA | Rhizanthella slateri population in the Great Lakes LGA | Plant > Orchids | Endangered Population |
| Rhynchosia acuminatissima | Pointed Trefoil | Plant > Herbs and Forbs | Vulnerable |
| Ribbon Gum, Mountain Gum, Snow Gum Grassy Forest/Woodland of the New England Tableland Bioregion | Ribbon Gum, Mountain Gum, Snow Gum Grassy Forest/Woodland of the New England Tableland Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| River-Flat Eucalypt Forest on Coastal Floodplains of the NSW North Coast, Sydney Basin and South East Corner bioregions | River-Flat Eucalypt Forest on Coastal Floodplains | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Robertson Basalt Tall Open-forest in the Sydney Basin Bioregion | Robertson Basalt Tall Open-forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Robertson Rainforest in the Sydney Basin Bioregion | Robertson Rainforest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Rostratula benghalensis | Painted Snipe | Animal > Birds | Endangered |
| Rotala tripartita | Rotala tripartita | Plant > Herbs and Forbs | Endangered |
| Rulingia procumbens | Rulingia procumbens | Plant > Shrubs | Vulnerable |
| Rulingia prostrata | Dwarf Kerrawang | Plant > Shrubs | Endangered |
| Rutidosis heterogama | Heath Wrinklewort | Plant > Herbs and Forbs | Vulnerable |
| Rutidosis leiolepis | Monaro Golden Daisy | Plant > Herbs and Forbs | Vulnerable |
| Rutidosis leptorrhynchoides | Button Wrinklewort | Plant > Herbs and Forbs | Endangered |
| Rytidosperma pumilum | Feldmark Grass | Plant > Herbs and Forbs | Vulnerable |
| Saccolaimus flaviventris | Yellow-bellied Sheathtail-bat | Animal > Bats | Vulnerable |
| Sandhill Pine Woodland in the Riverina, Murray-Darling Depression and NSW South Western Slopes bioregions | Sandhill Pine Woodland in the Riverina, Murray-Darling Depression and NSW South Western Slopes bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Santalum murrayanum | Bitter Quandong | Plant > Shrubs | Endangered |
| Sarcochilus dilatatus | Brown Butterfly Orchid | Plant > Orchids | Endangered |
| Sarcochilus fitzgeraldii | Ravine Orchid | Plant > Orchids | Vulnerable |
| Sarcochilus hartmannii | Hartman's Sarcochilus | Plant > Orchids | Vulnerable |
| Sarcochilus weinthalii | Blotched Sarcochilus | Plant > Orchids | Vulnerable |
| Scaevola collaris | Fan Flower | Plant > Shrubs | Endangered |
| Sclerolaena napiformis | Turnip Copperburr | Plant > Shrubs | Endangered |
| Scoteanax rueppellii | Greater Broad-nosed Bat | Animal > Bats | Vulnerable |
| Semi-evergreen Vine Thicket in the Brigalow Belt South and Nandewar Bioregions | Semi-evergreen Vine Thicket | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Senecio garlandii | Woolly Ragwort | Plant > Herbs and Forbs | Vulnerable |
| Senecio linearifolius var. dangarensis | Senecio linearifolius var. dangarensis | Plant > Shrubs | Endangered |
| Senecio spathulatus | Coast Groundsel | Plant > Herbs and Forbs | Endangered |
| Senecio squarrosus | Swamp Groundsel | Plant > Herbs and Forbs | Endangered |
| Senna acclinis | Rainforest Cassia | Plant > Shrubs | Endangered |
| Shale Gravel Transition Forest in the Sydney Basin Bioregion | Shale Gravel Transition Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Shale Sandstone Transition Forest in the Sydney Basin Bioregion | Shale Sandstone Transition Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Sida rohlenae | Shrub Sida | Plant > Herbs and Forbs | Endangered |
| Simoselaps fasciolatus | Narrow-banded Shovel-nosed Snake | Animal > Reptiles | Vulnerable |
| Sminthopsis leucopus | White-footed Dunnart | Animal > Marsupials | Vulnerable |
| Sminthopsis macroura | Stripe-faced Dunnart | Animal > Marsupials | Vulnerable |
| Solanum armourense | Solanum armourense | Plant > Shrubs | Endangered |
| Solanum celatum | Solanum celatum | Plant > Shrubs | Endangered |
| Solanum karsense | Menindee Nightshade | Plant > Herbs and Forbs | Vulnerable |
| Solanum limitare | Border Ranges Nightshade | Plant > Shrubs | Endangered |
| Sophora fraseri | Brush Sophora | Plant > Shrubs | Vulnerable |
| Sophora tomentosa subsp. australis | Silverbush | Plant > Shrubs | Endangered |
| Southern Highlands Shale Woodlands in the Sydney Basin Bioregion | Southern Highlands Shale Woodlands in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Southern Sydney sheltered forest on transitional sandstone soils in the Sydney Basin Bioregion | Southern Sydney sheltered forest on transitional sandstone soils in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered |
| Stackhousia clementii | Stackhousia clementii | Plant > Herbs and Forbs | Endangered |
| Stagonopleura guttata | Diamond Firetail | Animal > Birds | Vulnerable |
| Sterna albifrons | Little Tern | Animal > Birds | Endangered |
| Sterna fuscata | Sooty Tern | Animal > Birds | Vulnerable |
| Stictonetta naevosa | Freckled Duck | Animal > Birds | Vulnerable |
| Strepera graculina crissalis | Lord Howe Currawong | Animal > Birds | Vulnerable |
| Styphelia perileuca | Montane Green Five-corners | Plant > Shrubs | Vulnerable |
| Sub-tropical Coastal Floodplain Forest of the NSW North Coast bioregion | Sub-tropical Coastal Floodplain Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Sula dactylatra | Masked Booby | Animal > Birds | Vulnerable |
| Sun Valley Cabbage Gum Forest in the Sydney Basin Bioregion | Sun Valley Cabbage Gum Forest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Suta flagellum | Little Whip Snake | Animal > Reptiles | Vulnerable |
| Swainsona adenophylla | Violet Swainson-Pea | Plant > Herbs and Forbs | Endangered |
| Swainsona colutoides | Bladder Senna | Plant > Herbs and Forbs | Endangered |
| Swainsona flavicarinata | Yellow-Keeled Swainsona | Plant > Herbs and Forbs | Endangered |
| Swainsona murrayana | Slender Darling Pea | Plant > Herbs and Forbs | Vulnerable |
| Swainsona plagiotropis | Red Darling Pea | Plant > Herbs and Forbs | Vulnerable |
| Swainsona pyrophila | Yellow Swainson-pea | Plant > Herbs and Forbs | Vulnerable |
| Swainsona recta | Mountain Swainson-pea | Plant > Herbs and Forbs | Endangered |
| Swainsona sericea | Silky Swainson-pea | Plant > Herbs and Forbs | Vulnerable |
| Swainsona viridis | Creeping Darling Pea | Plant > Herbs and Forbs | Endangered |
| Swamp oak floodplain forest of the NSW North Coast, Sydney Basin and South East Corner bioregions | Swamp oak floodplain forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Swamp sclerophyll forest on coastal floodplains of the NSW North Coast, Sydney Basin and South East Corner bioregions | Swamp sclerophyll forest on coastal floodplains | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Syconycteris australis | Common Blossom-bat | Animal > Bats | Vulnerable |
| Sydney Freshwater Wetlands in the Sydney Basin Bioregion | Sydney Freshwater Wetlands in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Sydney Turpentine-Ironbark Forest | Sydney Turpentine-Ironbark Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Symplocos baeuerlenii | Small-leaved Hazelwood | Plant > Shrubs | Vulnerable |
| Synemon plana | Golden Sun Moth | Animal > Invertebrates | Endangered |
| Syzygium hodgkinsoniae | Red Lilly Pilly | Plant > Trees | Vulnerable |
| Syzygium moorei | Durobby | Plant > Trees | Vulnerable |
| Syzygium paniculatum | Magenta Lilly Pilly | Plant > Trees | Vulnerable |
| Tableland Basalt Forest in the Sydney Basin and South Eastern Highlands Bioregions | Tableland Basalt Forest | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Tarenna cameronii | Cameron's Tarenna | Plant > Trees | Endangered |
| Tasmannia glaucifolia | Fragrant Pepperbush | Plant > Shrubs | Vulnerable |
| Tasmannia purpurascens | Broad-leaved Pepperbush | Plant > Shrubs | Vulnerable |
| Tetratheca glandulosa | Tetratheca glandulosa | Plant > Shrubs | Vulnerable |
| Tetratheca juncea | Black-eyed Susan | Plant > Shrubs | Vulnerable |
| Thalassarche cauta | Shy Albatross | Animal > Birds | Vulnerable |
| Thalassarche melanophris | Black-browed Albatross | Animal > Birds | Vulnerable |
| The Shorebird Community occurring on the relict tidal delta sands at Taren Point | Taren Point Shorebirds | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Thelymitra atronitida | Black-hooded Sun Orchid | Plant > Orchids | Critically Endangered |
| Thelymitra sp. 'Adorata' | Wyong Sun Orchid | Plant > Orchids | Critically Endangered |
| Themeda australis | Themeda Grassland on seacliffs and coastal headlands in the NSW North Coast, Sydney Basin and South East Corner bioregions | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Thersites mitchellae | Mitchell's Rainforest Snail | Animal > Invertebrates | Endangered |
| Thesium australe | Austral Toadflax | Plant > Herbs and Forbs | Vulnerable |
| Thinornis rubricollis | Hooded Plover | Animal > Birds | Endangered |
| Threlkeldia inchoata | Tall Bonefruit | Plant > Shrubs | Endangered |
| Thylogale stigmatica | Red-legged Pademelon | Animal > Marsupials | Vulnerable |
| Tiliqua multifasciata | Centralian Blue-tongued Lizard | Animal > Reptiles | Vulnerable |
| Tiliqua occipitalis | Western Blue-tongued Lizard | Animal > Reptiles | Vulnerable |
| Tinospora smilacina | Tinospora Vine | Plant > Epiphytes and climbers | Endangered |
| Tinospora tinosporoides | Arrow-head Vine | Plant > Epiphytes and climbers | Vulnerable |
| Todiramphus chloris | Collared Kingfisher | Animal > Birds | Vulnerable |
| Trachymene saniculifolia | Mountain Trachymene | Plant > Herbs and Forbs | Endangered |
| Triplarina imbricata | Creek Triplarina | Plant > Shrubs | Endangered |
| Triplarina nowraensis | Nowra Heath Myrtle | Plant > Shrubs | Endangered |
| Turnix maculosa | Red-backed Button-quail | Animal > Birds | Vulnerable |
| Turnix melanogaster | Black-breasted Button-quail | Animal > Birds | Endangered |
| Tylophora linearis | Tylophora linearis | Plant > Epiphytes and climbers | Vulnerable |
| Tylophora woollsii | Cryptic Forest Twiner | Plant > Epiphytes and climbers | Endangered |
| Tympanocryptis pinguicolla | Grassland Earless Dragon | Animal > Reptiles | Endangered |
| Typhonium sp. aff. brownii | Stinky Lily | Plant > Herbs and Forbs | Endangered |
| Tyto capensis | Grass Owl | Animal > Birds | Vulnerable |
| Tyto novaehollandiae | Masked Owl | Animal > Birds | Vulnerable |
| Tyto tenebricosa | Sooty Owl | Animal > Birds | Vulnerable |
| Umina Coastal Sandplain Woodland in the Sydney Basin Bioregion | Umina Coastal Sandplain Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Underwoodisaurus sphyrurus | Border Thick-tailed Gecko | Animal > Reptiles | Vulnerable |
| Upland Wetlands of the Drainage Divide of the New England Tableland Bioregion | Upland Wetlands of the Drainage Divide of the New England Tablelands | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Upland Wetlands of the New England Tablelands (New England Tableland Bioregion) and the Monaro Plateau (South Eastern Highlands Bioregion) | Upland Wetlands of the New England Tablelands and the Monaro Plateau | Community > Threatened Ecological Communities | Not listed |
| Uromyrtus australis | Peach Myrtle | Plant > Trees | Endangered |
| Varanus rosenbergi | Rosenberg's Goanna | Animal > Reptiles | Vulnerable |
| Velleia perfoliata | Velleia perfoliata | Plant > Herbs and Forbs | Vulnerable |
| Vespadelus baverstocki | Inland Forest Bat | Animal > Bats | Vulnerable |
| Vespadelus troughtoni | Eastern Cave Bat | Animal > Bats | Vulnerable |
| Viola cleistogamoides | Hidden Violet | Plant > Herbs and Forbs | Endangered |
| Wahlenbergia multicaulis - endangered population | Tadgell's Bluebell population in the Auburn, Bankstown, Baulkham Hills, Canterbury, Hornsby, Parramatta and Strathfield LGAs | Plant > Endangered Populations | Endangered Population |
| Wahlenbergia scopulicola | Rock-face Bluebell | Plant > Herbs and Forbs | Endangered |
| Warkworth Sands Woodland in the Sydney Basin Bioregion | Warkworth Sands Woodland in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Weeping Myall population in the Hunter catchment | Weeping Myall population in the Hunter catchment | Plant > Endangered Populations | Endangered Population |
| Western Sydney Dry Rainforest in the Sydney Basin Bioregion | Western Sydney Dry Rainforest in the Sydney Basin Bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Westringia davidii | David's Westingia | Plant > Shrubs | Vulnerable |
| Westringia kydrensis | Kydra Westringia | Plant > Shrubs | Endangered |
| White Box Yellow Box Blakely's Red Gum Woodland | Box-Gum Woodland | Community > Threatened Ecological Communities | Endangered Ecological Community |
| White Gum Moist Forest in the NSW North Coast bioregion | White Gum Moist Forest in the NSW North Coast bioregion | Community > Threatened Ecological Communities | Endangered Ecological Community |
| Wilsonia backhousei | Narrow-leafed Wilsonia | Plant > Shrubs | Vulnerable |
| Wilsonia rotundifolia | Round-leafed Wilsonia | Plant > Shrubs | Endangered |
| Wollemia nobilis | Wollemi Pine | Plant > Trees | Endangered |
| Xanthomyza phrygia | Regent Honeyeater | Animal > Birds | Endangered |
| Xanthosia scopulicola | Xanthosia scopulicola | Plant > Shrubs | Vulnerable |
| Xenus cinereus | Terek Sandpiper | Animal > Birds | Vulnerable |
| Xerochrysum palustre | Swamp Everlasting | Plant > Herbs and Forbs | Vulnerable (Commonwealth listed only) |
| Xerothamnella parvifolia | Xerothamnella parvifolia | Plant > Shrubs | Endangered |
| Xylosma parvifolium | Mountain Xylosma | Plant > Shrubs | Endangered |
| Xylosma terrae-reginae | Queensland Xylosma | Plant > Shrubs | Endangered |
| Zannichellia palustris | Zannichellia palustris | Plant > Aquatic plants | Endangered |
| Zieria adenodonta | Wollumbin Zieria | Plant > Shrubs | Endangered |
| Zieria adenophora | Araluen Zieria | Plant > Shrubs | Endangered |
| Zieria baeuerlenii | Bomaderry Zieria | Plant > Shrubs | Endangered |
| Zieria buxijugum | Box Range Zieria | Plant > Shrubs | Endangered |
| Zieria citriodora | Lemon Zieria | Plant > Shrubs | Endangered |
| Zieria covenyi | Coveny's Zieria | Plant > Shrubs | Endangered |
| Zieria floydii | Floyd's Zieria | Plant > Shrubs | Endangered |
| Zieria formosa | Shapely Zieria | Plant > Shrubs | Endangered |
| Zieria granulata | Illawarra Zieria | Plant > Shrubs | Endangered |
| Zieria ingramii | Keith's Zieria | Plant > Shrubs | Endangered |
| Zieria involucrata | Zieria involucrata | Plant > Shrubs | Endangered |
| Zieria lasiocaulis | Willi Willi Zieria | Plant > Shrubs | Endangered |
| Zieria murphyi | Velvet Zieria | Plant > Shrubs | Vulnerable |
| Zieria obcordata | Zieria obcordata | Plant > Shrubs | Endangered |
| Zieria parrisiae | Parris' Zieria | Plant > Shrubs | Endangered |
| Zieria prostrata | Headland Zieria | Plant > Shrubs | Endangered |
| Zieria smithii - endangered population | Zieria smithii population at Diggers Head | Plant > Endangered Populations | Endangered Population |
| Zieria tuberculata | Warty Zieria | Plant > Shrubs | Vulnerable |
| Zosterops lateralis tephropleurus | Lord Howe Island Silvereye | Animal > Birds | Vulnerable |
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