List of Endangered species in United States
This is a list of Endangered species in United States according to the IUCN Red List.
This list was last updated 2019-09-14
This list contains only species that have been assessed for the IUCN Red List. It is therefore not representative of all the species in the country.
Species counts by country: Total | Amphibians | Birds | Fish | Mammals | Reptiles | Vascular Plants.
| scientific_name | common_name | taxonid | category |
|---|---|---|---|
| Cibotium nealiae | 91168785 | EN | |
| Polyscias waialealae | 97820728 | EN | |
| Platydesma remyi | 30948 | EN | |
| Psychotria grandiflora | Large-flowered Balsamo | 30951 | EN |
| Pteralyxia kauaiensis | Kauai Pteralyxia | 30952 | EN |
| Pittosporum gayanum | 80232542 | EN | |
| Quercus oglethorpensis | Oglethorpe Oak | 30956 | EN |
| Quercus parvula var. parvula | Santa Cruz Island Oak | 30957 | EN |
| Coprosma elliptica | 91168887 | EN | |
| Wilkesia gymnoxiphium | 97910910 | EN | |
| Coprosma kauensis | 91168960 | EN | |
| Percina pantherina | Leopard Darter | 16593 | EN |
| Perdicella helena | 16599 | EN | |
| Fallicambarus petilicarpus | Slenderwrist Burrowing Crayfish | 8494 | EN |
| Sylvilagus cognatus | Manzano Mountain Cottontail | 41309 | EN |
| Sylvilagus robustus | Davis Mountains Cottontail | 41310 | EN |
| Fritillaria falcata | Talus Fritillary | 44392806 | EN |
| Phaeognathus hubrichti | Red Hills Salamander | 16801 | EN |
| Polyscias waimeae | 97821101 | EN | |
| Adelocosa anops | No-eyed Big-eyed Wolf Spider | 513 | EN |
| Fundulus julisia | Barrens Topminnow | 8707 | EN |
| Percina aurora | Pearl Darter | 184102 | EN |
| Fusconaia cuneolus | Finerayed Pigtoe | 8773 | EN |
| Fusconaia escambia | Narrow Pigtoe | 8779 | EN |
| Bidens forbesii | 91152973 | EN | |
| Fusconaia lananensis | Triangle Pigtoe | 8780 | EN |
| Fusconaia masoni | Atlantic Pigtoe | 8781 | EN |
| Bidens forbesii subsp. forbesii | 91153009 | EN | |
| Coprosma cordicarpa | 103801483 | EN | |
| Platanthera yosemitensis | Yosemite Bog Orchid | 64176784 | EN |
| Chrosomus cumberlandensis | Mountain Blackside Dace | 17064 | EN |
| Gambusia nobilis | Pecos Gambusia | 8895 | EN |
| Bidens forbesii subsp. kahiliensis | 91153093 | EN | |
| Alasmidonta arcula | Altamaha Arc-Mussel | 773 | EN |
| Alasmidonta atropurpurea | Cumberland Elktoe | 774 | EN |
| Melicope ovalis | Wild Pelea | 33557 | EN |
| Melicope pallida | 33558 | EN | |
| Ochrosia haleakalae | 33560 | EN | |
| Cheirodendron dominii | Domin's Club | 33564 | EN |
| Psychotria hobdyi | Hobdy's Wild-coffee | 33568 | EN |
| Dubautia knudsenii subsp. filiformis | Knudsen's Dubautia | 33578 | EN |
| Dubautia knudsenii subsp. nagatae | 33579 | EN | |
| Chrysodracon forbesii | Forbes' Dracaena | 33584 | EN |
| Chrysodracon hawaiiensis | 33586 | EN | |
| Cyanea macrostegia subsp. gibsonii | 33587 | EN | |
| Sphaerocarpos drewei | 39243 | EN | |
| Hibiscus arnottianus subsp. immaculatus | White Molokai Hibiscus | 33624 | EN |
| Hibiscus kokio subsp. saintjohnianus | Saint John's Rosemallow | 33626 | EN |
| Myrsine knudsenii | 33630 | EN | |
| Metrosideros polymorpha var. newellii | 33632 | EN | |
| Pisonia wagneriana | 33633 | EN | |
| Chrysodracon aurea | 91161449 | EN | |
| Triphora craigheadii | Craighead’s Noddingcaps | 64177016 | EN |
| Melicope balloui | Rock Pelea | 33661 | EN |
| Melicope christophersenii | 33662 | EN | |
| Melicope cinerea | 33663 | EN | |
| Melicope makahae | 33671 | EN | |
| Melicope orbicularis | Orbicular Pelea | 33674 | EN |
| Melicope puberula | 33676 | EN | |
| Melicope saint-johnii | St John's Pelea | 33677 | EN |
| Melicope sandwicensis | 33678 | EN | |
| Melicope waialealae | 33679 | EN | |
| Alasmidonta triangulata | Southern Elktoe | 189371 | EN |
| Clermontia samuelii | 44156 | EN | |
| Gila intermedia | Gila Chub | 9187 | EN |
| Cambarus speleocoopi | Sweet Home Alabama Crayfish | 164915 | EN |
| Ammospermophilus nelsoni | Nelson's Antelope Squirrel | 1149 | EN |
| Dubautia microcephala | Small-head Dubautia | 33997 | EN |
| Cupressus arizonica var. nevadensis | Piute Cypress | 33998 | EN |
| Dubautia knudsenii subsp. knudsenii | 34018 | EN | |
| Cupressus goveniana | Mendocino Cypress | 42219 | EN |
| Juga occata | Scalloped Juga | 189676 | EN |
| Labordia kaalae | 34031 | EN | |
| Alnus maritima | Brook Alder | 34053 | EN |
| Clermontia arborescens subsp. arborescens | 34054 | EN | |
| Graptemys caglei | Cagle's Map Turtle | 9497 | EN |
| Pleurobema pyriforme | Oval Pigtoe | 17690 | EN |
| Pleurocera foremani | Foreman's High-spired Riversnail | 17701 | EN |
| Bidens valida | 91153800 | EN | |
| Percina antesella | Amber Darter | 16585 | EN |
| Anthicus sacramento | Sacramento Beetle | 1617 | EN |
| Helminthoglypta callistoderma | Kern Shoulderband | 9852 | EN |
| Potamilus amphichaenus | Texas Heelsplitter | 18094 | EN |
| Potamilus inflatus | Alabama Heelsplitter | 18092 | EN |
| Calathaemon holthuisi | 198335 | EN | |
| Antrobia culveri | Tumbling Creek Cavesnail | 1786 | EN |
| Procambarus acherontis | Orlando Cave Crayfish | 18188 | EN |
| Procambarus apalachicolae | Coastal Flatwoods Crayfish | 18191 | EN |
| Procambarus brazoriensis | Brazoria Crayfish | 18194 | EN |
| Procambarus cometes | Mississippi Flatwoods Crayfish | 18195 | EN |
| Procambarus econfinae | Panama City Crayfish | 18197 | EN |
| Procambarus erythrops | Santa Fe Cave Crayfish | 18198 | EN |
| Procambarus franzi | Orange Lake Cave Crayfish | 18200 | EN |
| Procambarus horsti | Big Blue Spring Cave Crayfish | 18201 | EN |
| Procambarus leitheuseri | Coastal Lowland Cave Crayfish | 18203 | EN |
| Procambarus milleri | Miami Cave Crayfish | 18204 | EN |
| Cambarus pecki | Phantom Cave Crayfish | 18212 | EN |
| Procambarus orcinus | Woodville Karst Cave Crayfish | 18211 | EN |
| Procambarus escambiensis | Escambia Crayfish | 18222 | EN |
| Procambarus lucifugus ssp. lucifugus | Withlocoochee Light-fleeing Cave Crayfish | 18225 | EN |
| Eurycea naufragia | San Gabriel Springs Salamander | 59271 | EN |
| Eurycea tonkawae | Jollyville Plateau Salamander | 59275 | EN |
| Gyrinophilus gulolineatus | Berry Cave Salamander | 59280 | EN |
| Gyrinophilus subterraneus | West Virginia Spring Salamander | 59283 | EN |
| Pinus radiata var. radiata | Radiata Pine | 34743 | EN |
| Astragalus tener | Gray Slender Milkvetch | 19892179 | EN |
| Hobbseus orconectoides | Oktibbeha Riverlet Crayfish | 10207 | EN |
| Hobbseus valleculus | Choctaw Riverlet Crayfish | 10209 | EN |
| Hobbseus yalobushensis | Yalobusha Riverlet Crayfish | 10210 | EN |
| Plethodon welleri | Weller's Salamander | 59363 | EN |
| Pseudemys alabamensis | Alabama Red-bellied Turtle | 18458 | EN |
| Necturus alabamensis | Alabama Waterdog | 59430 | EN |
| Montipora dilatata | 133170 | EN | |
| Echinodontium ballouii | 71567420 | EN | |
| Arcidens wheeleri | Wheeler's Pearly Mussel | 2114 | EN |
| Assiminea pecos | Pecos Assiminea | 2182 | EN |
| Carex kauaiensis | 91154618 | EN | |
| Quercus acerifolia | Maple-leaved Oak | 35039 | EN |
| Tephrosia angustissima | Narrowleaf Hoarypea | 19892512 | EN |
| Zanthoxylum hawaiiense | 35157 | EN | |
| Schiedea sarmentosa | 80218482 | EN | |
| Ptychobranchus greenii | Triangular Kidneyshell | 18825 | EN |
| Spiranthes brevilabris | Texas Ladies'-tresses | 64176923 | EN |
| Marstonia agarhecta | Ocmulgee Marstonia | 18958 | EN |
| Pyrgulopsis metcalfi | Presidio County Springsnail | 18972 | EN |
| Astragalus altus | Tall Milkvetch | 19892777 | EN |
| Hygrocybe flavifolia | 75115087 | EN | |
| Io fluvialis | Spiny River Snail | 10838 | EN |
| Batrachoseps campi | Inyo Mountains Salamander | 2649 | EN |
| Iotichthys phlegethontis | Least Chub | 10847 | EN |
| Quadrula cylindrica ssp. strigillata | Rough Rabbit's Foot Pearly Mussel | 19039 | EN |
| Ischnura gemina | San Francisco Forktail | 10858 | EN |
| Rana muscosa | Southern Mountain Yellow-legged Frog | 19177 | EN |
| Lithobates onca | Relict Leopard Frog | 19178 | EN |
| Marsilea villosa | 78777071 | EN | |
| Charpentiera elliptica | 91155227 | EN | |
| Cyanea koolauensis | 78777204 | EN | |
| Reithrodontomys raviventris | Salt-marsh Harvest Mouse | 19401 | EN |
| Cyrtandra cyaneoides | 79129553 | EN | |
| Cladonia perforata | Florida Perforate Reindeer Lichen | 43994 | EN |
| Branchinecta conservatio | Conservancy Fairy Shrimp | 3045 | EN |
| Branchinecta longiantenna | Longhorn Fairy Shrimp | 3046 | EN |
| Lampsilis higginsii | Higgins' Eye Pearly Mussel | 11237 | EN |
| Lampsilis rafinesqueana | Neosho Pearlymussel | 11242 | EN |
| Branchinella alachua | Peninsula Fairy Shrimp | 3054 | EN |
| Hamiota altilis | Finelined Pocketbook | 11250 | EN |
| Lampsilis powellii | Arkansas Fatmucket | 11259 | EN |
| Quercus havardii | Shinnery Oak | 72420404 | EN |
| Bidens cosmoides | 44116 | EN | |
| Clermontia calophylla | Lava Clermontia | 44124 | EN |
| Clermontia waimeae | 44125 | EN | |
| Anaxyrus houstonensis | Houston Toad | 3170 | EN |
| Cyanea copelandii | 44140 | EN | |
| Cyanea copelandii subsp. haleakalaensis | 44142 | EN | |
| Calamagrostis hillebrandii | 44138 | EN | |
| Anaxyrus canorus | Yosemite Toad | 3180 | EN |
| Anaxyrus nelsoni | 3181 | EN | |
| Cenchrus agrimonioides var. agrimonioides | 44152 | EN | |
| Cenchrus agrimonioides | 44153 | EN | |
| Metrosideros rugosa | 103804082 | EN | |
| Metrosideros tremuloides | 103804120 | EN | |
| Lepidomeda vittata | Little Colorado Spinedace | 11579 | EN |
| Lepidurus packardi | 11615 | EN | |
| Leptachatina lepida | 11635 | EN | |
| Caecidotea barri | Clifton Cave Isopod | 3446 | EN |
| Scaphirhynchus albus | Pallid Sturgeon | 19940 | EN |
| Leptoxis taeniata | Painted Rocksnail | 11785 | EN |
| Chasiempis ibidis | Oahu Elepaio | 22736423 | EN |
| Quercus georgiana | Georgia Oak | 34011 | EN |
| Rinodina brodoana | 80703064 | EN | |
| Cheirodendron platyphyllum subsp. kauaiense | 91115100 | EN | |
| Cambarus cymatilis | Conasauga Blue Burrower | 3692 | EN |
| Cambarus harti | Piedmont Blue Burrower | 3696 | EN |
| Pleuronaia dolabelloides | Slabside Pearlymussel | 11922 | EN |
| Tinostoma smaragditis | Fabulous Green Sphinx Moth | 21913 | EN |
| Eurybia furcata | Forked Aster | 100503272 | EN |
| Cyperus pennatiformis | 78786326 | EN | |
| Centrocercus minimus | Gunnison Sage-Grouse | 22728472 | EN |
| Tryonia diaboli | Devil Tryonia | 189654 | EN |
| Lirceus usdagalun | Lee County Cave Isopod | 12121 | EN |
| Stagnicola idahoensis | Shortspire Pondsnail | 189660 | EN |
| Sorex pribilofensis | Pribilof Island Shrew | 20391 | EN |
| Catostomus santaanae | Santa Ana Sucker | 4049 | EN |
| Catostomus warnerensis | Warner Sucker | 4051 | EN |
| Spelaeorchestia kiloana | Kaui Cave Amphipod | 20451 | EN |
| Leucosticte atrata | Black Rosy-finch | 22720488 | EN |
| Cyclosorus boydiae | Boyd's Maidenfern | 61423 | EN |
| Cyclosorus wailele | Waioli Valley Maidenfern | 61424 | EN |
| Quadrula intermedia | Cumberland Monkeyface | 189690 | EN |
| Graptemys gibbonsi | Pascagoula Map Turtle | 184436 | EN |
| Graptemys pearlensis | Pearl River Map Turtle | 184437 | EN |
| Leucosticte australis | Brown-capped Rosy-Finch | 22728985 | EN |
| Hemignathus wilsoni | 'Akiapola'au | 22720799 | EN |
| Manucerthia mana | Hawaii Creeper | 22720814 | EN |
| Paroreomyza montana | Maui 'Alauahio | 22720818 | EN |
| Cypripedium californicum | California Lady's Slipper | 43315511 | EN |
| Pediocactus paradinei | Park Pincushion-cactus | 151923 | EN |
| Bombus fraternus | 44937623 | EN | |
| Fevansia aurantiaca | 75723177 | EN | |
| Chasmistes brevirostris | Shortnose Sucker | 4585 | EN |
| Chasmistes cujus | Cui-ui | 4586 | EN |
| Margaritifera marrianae | Alabama Pearlshell | 12800 | EN |
| Stygobromus hayi | Hay's Spring Amphipod | 20990 | EN |
| Remya kauaiensis | 80212484 | EN | |
| Pritchardia flynnii | Flynn's Loulu | 80228875 | EN |
| Stygobromus pecki | Peck's Cave Amphipod | 21004 | EN |
| Pritchardia minor | Alakai Swamp Pritchardia | 80228952 | EN |
| Meda fulgida | Spikedace | 12923 | EN |
| Medionidus acutissimus | Alabama Moccasinshell | 12924 | EN |
| Medionidus parvulus | Coosa Moccasinshell | 12927 | EN |
| Anas wyvilliana | Hawaiian Duck | 22680199 | EN |
| Cicindela columbica | Columbia River Tiger Beetle | 4846 | EN |
| Cicindela puritana | Puritan Tiger Beetle | 4855 | EN |
| Syncaris pacifica | California Freshwater Shrimp | 21249 | EN |
| Cyprinodon salinus | Cottonball Marsh Pupfish | 62211 | EN |
| Menidia conchorum | Key Silverside | 13145 | EN |
| Neotamias palmeri | Palmer's Chipmunk | 21355 | EN |
| Sclerocactus nyensis | Nye County Fish-hook Cactus | 152484 | EN |
| Mesodon clenchi | Clench's Middle-toothed Land Snail | 13227 | EN |
| Rana sierrae | Sierra Nevada Yellow-legged Frog | 136114 | EN |
| Hygrocybe noelokelani | 95384502 | EN | |
| Portulaca sclerocarpa | 80180177 | EN | |
| Trimerotropis occulens | Lompoc Grasshopper | 22176 | EN |
| Gila cypha | Humpback Chub | 9184 | EN |
| Euphorbia skottsbergii subsp. skottsbergii | 80090298 | EN | |
| Chrosomus saylori | Laurel Dace | 202069 | EN |
| Crangonyx dearolfi | Pennsylvania Cave Amphipod | 5470 | EN |
| Cyprinella lepida | Plateau Shiner | 202083 | EN |
| Gila seminuda | Virgin River Chub | 202109 | EN |
| Crenichthys baileyi | White River Springfish | 5515 | EN |
| Cortinarius pavelekii | 75101587 | EN | |
| Macrhybopsis tetranema | Peppered Chub | 202154 | EN |
| Santalum freycinetianum | Lanai Sandalwood | 62929 | EN |
| Ramaria verlotensis | 125433300 | EN | |
| Moxostoma robustum | Robust Redhorse | 202257 | EN |
| Notropis albizonatus | Palezone Shiner | 202279 | EN |
| Cheirodendron fauriei | 91158071 | EN | |
| Pritchardia remota | 38652 | EN | |
| Quercus pacifica | Island Scrub Oak | 194213 | EN |
| Trimerotropis infantilis | Zyantc Band-winged Grasshopper | 22175 | EN |
| Trimerotropis occidentaloides | Santa Monica Mountains Grasshopper | 22177 | EN |
| Asimina tetramera | Four-petal Pawpaw | 30379 | EN |
| Archoplites interruptus | Sacramento Perch | 202432 | EN |
| Etheostoma akatulo | Bluemask Darter | 202443 | EN |
| Etheostoma chienense | Relict Darter | 202462 | EN |
| Etheostoma phytophilum | Rush Darter | 202515 | EN |
| Etheostoma scotti | Cherokee Darter | 202530 | EN |
| Etheostoma susanae | Cumberland Darter | 202538 | EN |
| Etheostoma tecumsehi | Shawnee Darter | 202542 | EN |
| Cumberlandia monodonta | Spectaclecase | 5952 | EN |
| Percina brevicauda | Coal Darter | 202571 | EN |
| Percina kusha | Bridled Darter | 202581 | EN |
| Pritchardia lanaiensis | 38740 | EN | |
| Lysimachia glutinosa | 114849627 | EN | |
| Cheirodendron trigynum subsp. helleri | 91158368 | EN | |
| Valvata mergella | Rams-horn Valvata | 69632172 | EN |
| Pritchardia forbesiana | 38644 | EN | |
| Pritchardia glabrata | 38645 | EN | |
| Pritchardia lanigera | 38648 | EN | |
| Lysimachia kalalauensis | 114849693 | EN | |
| Tulotoma magnifica | Tulotoma | 22444 | EN |
| Noturus fasciatus | Saddled Madtom | 202686 | EN |
| Cynomys parvidens | Utah Prairie Dog | 6090 | EN |
| Lepidium serra | 80230346 | EN | |
| Cyprinella caerulea | Blue Shiner | 6134 | EN |
| Cyprinodon elegans | Comanche Springs Pupfish | 6150 | EN |
| Cyprinodon radiosus | Owens Pupfish | 6164 | EN |
| Cyprinodon tularosa | White Sands Pupfish | 6169 | EN |
| Clermontia tuberculata | Haleakala Clermontia | 30768 | EN |
| Dubautia arborea | Tree Dubautia | 30770 | EN |
| Pittosporum napaliense | 30779 | EN | |
| Exocarpos gaudichaudii | Gaudichaud's Exocarpus | 30782 | EN |
| Wikstroemia bicornuta | 30788 | EN | |
| Pinus palustris | Longleaf Pine | 39068 | EN |
| Nemapalpus nearcticus | Sugarfoot Moth Fly | 14498 | EN |
| Bobea timonioides | 30904 | EN | |
| Clermontia drepanomorpha | Kohala Clermontia | 30912 | EN |
| Clermontia lindseyana | 30913 | EN | |
| Deltistes luxatus | Lost River Sucker | 6338 | EN |
| Cupressus goveniana var. goveniana | Gowen Cypress | 30918 | EN |
| Cyrtandra giffardii | Giffard's Cyrtandra | 30922 | EN |
| Euphorbia haeleeleana | 30925 | EN | |
| Labordia lydgatei | 30935 | EN | |
| Labordia tinifolia var. lanaiensis | 30936 | EN | |
| Myrsine linearifolia | 80173279 | EN | |
| Myrsine petiolata | 30944 | EN | |
| Nothocestrum latifolium | 30946 | EN | |
| Adenophorus epigaeus | 91150579 | EN | |
| Procambarus lylei | Shutispear Crayfish | 153887 | EN |
| Ilex cuthbertii | Cuthbert's Holly | 122927400 | EN |
| Isodendrion longifolium | 80091469 | EN | |
| Antidesma platyphyllum var. hillebrandii | 91150722 | EN | |
| Orconectes pardalotus | Leopard Crayfish | 153981 | EN |
| Pituophis ruthveni | Louisiana Pinesnake | 63874 | EN |
| Cambarus cracens | Slenderclaw Crayfish | 153997 | EN |
| Anniella grinnelli | Bakersfield Legless Lizard | 89930126 | EN |
| Kadua cookiana | 80091537 | EN | |
| Newcombia canaliculata | 14747 | EN | |
| Newcombia cumingi | 14748 | EN | |
| Newcombia lirata | 14749 | EN | |
| Newcombia perkinsi | 14750 | EN | |
| Newcombia pfeifferi | 14751 | EN | |
| Newcombia sulcata | 14752 | EN | |
| Juga hemphilli | Barren Juga | 69630401 | EN |
| Tantilla oolitica | Rim Rock Crowned Snake | 63954 | EN |
| Cordulegaster sarracenia | Sarracenia Spiketail | 50969065 | EN |
| Dipodomys ingens | Giant Kangaroo Rat | 6678 | EN |
| Notropis cahabae | Cahaba Shiner | 14884 | EN |
| Notropis mekistocholas | Cape Fear Shiner | 14888 | EN |
| Noturus gilberti | Orangefin Madtom | 14902 | EN |
| Noturus lachneri | Ouachita Madtom | 14903 | EN |
| Noturus stanauli | Pygmy Madtom | 14906 | EN |
| Noturus taylori | Caddo Madtom | 14907 | EN |
| Disconaias salinasensis | Salina Mucket | 6718 | EN |
| Plethobasus cyphyus | Sheepnose | 17624 | EN |
| Plethodon stormi | Siskiyou Mountains Salamander | 17628 | EN |
| Loxops coccineus | Hawaii Akepa | 103823991 | EN |
| Chrysodracon fernaldii | 31363 | EN | |
| Nototrichium humile | 80173451 | EN | |
| Driloleirus macelfreshi | Oregon Giant Earthworm | 6829 | EN |
| Obovaria rotulata | Round Ebonyshell | 15023 | EN |
| Oecanthus laricis | Laricis Tree Cricket | 15129 | EN |
| Pleurobema taitianum | Judge Tait's Mussel | 17671 | EN |
| Pleurobema decisum | Southern Clubshell | 17679 | EN |
| Oncorhynchus gilae | Apache Trout | 15318 | EN |
| Pritchardia perlmanii | 38742 | EN | |
| Canavalia kauaiensis | 80231460 | EN | |
| Orconectes jeffersoni | Louisville Crayfish | 15422 | EN |
| Orconectes shoupi | Nashville Crayfish | 15423 | EN |
| Astelia argyrocoma | 91151440 | EN | |
| Orconectes packardi | Cave Crayfish | 15443 | EN |
| Pyrgulopsis aloba | Duckwater Pyrg | 40051 | EN |
| Pyrgulopsis cruciglans | Transverse Grand Pyrg | 40106 | EN |
| Sequoiadendron giganteum | Giant Sequoia | 34023 | EN |
| Sarracenia purpurea var. montana | Purple Pitcherplant | 40116 | EN |
| Orthalicus reses ssp. reses | Stock Island Tree Snail | 15541 | EN |
| Sarracenia rubra subsp. gulfensis | 40117 | EN | |
| Sarracenia rubra subsp. jonesii | Mountain Sweet Pitcherplant | 40118 | EN |
| Sarracenia rubra subsp. wherryi | 40119 | EN | |
| Schiedea spergulina | 80219156 | EN | |
| Sequoia sempervirens | Redwood | 34051 | EN |
| Cyrtandra heinrichii | 80231759 | EN | |
| Abies fraseri | She Balsam | 32101 | EN |
| Schiedea lychnoides | 80230597 | EN | |
| Elimia bellula | Walnut Elimia | 7602 | EN |
| Metrosideros macropus | 103804024 | EN | |
| Elliptio spinosa | Georgia Spinymussel | 7633 | EN |
| Elliptio chipolaensis | Chipola Slabshell | 7640 | EN |
| Cyrtandra oenobarba | 80231899 | EN | |
| Spiranthes delitescens | Canelo Hills Ladies’-Tresses | 22486502 | EN |
| Palaemonetes antrorum | Balcones Cave Shrimp | 15885 | EN |
| Palaemonias alabamae | Alabama Cave Shrimp | 15887 | EN |
| Brodiaea pallida | Chinese Camp Brodiaea | 22486557 | EN |
| Lobelia niihauensis | 80166475 | EN | |
| Uma inornata | Coachella Valley Fringe-toed Lizard | 22727 | EN |
| Epioblasma capsaeformis | Oyster Mussel | 7866 | EN |
| Epioblasma obliquata ssp. obliquata | Purple Cat's Paw Pearly Mussel | 7893 | EN |
| Gambelia sila | San Joaquin Leopard Lizard | 40690 | EN |
| Bidens micrantha subsp. kalealaha | 16195319 | EN | |
| Viola oahuensis | 80224011 | EN | |
| Gammarus acherondytes | Illinois Cave Amphipod | 40743 | EN |
| Parapinnixa affinis | California Bay Pea Crab | 16185 | EN |
| Erimystax cahni | Slender Chub | 8015 | EN |
| Trematolobelia kauaiensis | 97911574 | EN | |
| Etheostoma boschungi | Slackwater Darter | 8110 | EN |
| Etheostoma ditrema | Coldwater Darter | 8113 | EN |
| Etheostoma fonticola | Fountain Darter | 8114 | EN |
| Etheostoma moorei | Yellowcheek Darter | 8120 | EN |
| Etheostoma nuchale | Watercress Darter | 8122 | EN |
| Etheostoma rubrum | Bayou Darter | 8127 | EN |
| Partulina perdix | 16354 | EN | |
| Partulina splendida | Splendid Partulina | 16355 | EN |
| Partulina mighelsiana | 16360 | EN | |
| Partulina physa | 16362 | EN | |
| Partulina proxima | 16364 | EN | |
| Partulina redfieldi | 16365 | EN | |
| Partulina semicarinata | 16366 | EN | |
| Partulina tappaniana | 16368 | EN | |
| Partulina tessellata | 16370 | EN | |
| Partulina variabilis | 16372 | EN |
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Species are classified by the IUCN Red List into nine groups: