Northern Prairie Wildlife Research Center
| Listed Species | Listed As | Lead Region | Pop. Status | Rec. Plan | Plan Stage | Recovery Achieved | Rec. Prior. |
| A'e | E | 1 | U | N | U | 1 | 2 |
| Abutilon eremitopetalum (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Abutilon sandwicense (NCN) | E | 1 | S | N | U | 1 | 8 |
| Adiantum vivesii (NCN) | E | 4 | D | Y | D | 1 | 5 |
| Agave, Arizonica | E | 2 | U | N | U | 1 | 5 |
| 'Aiakeakua, popolo | E | 1 | U | N | U | 1 | 5 |
| Aiea (Nothocestrum breviflorum) | E | 1 | U | N | U | 1 | 5 |
| Aiea (Nothocestrum peltatum) | E | 1 | U | N | U | 1 | 5 |
| Akoko (Chamaesyce celastroides var. kaenana) | E | 1 | S | N | U | 1 | 9 |
| Akoko (Chamaesyce deppeana) | E | 1 | U | N | U | 1 | 2 |
| Akoko (Chamaesyce kuwaleana) | E | 1 | U | N | U | 1 | 2 |
| Alani (Melicope haupuensis) | E | 1 | U | Y | D | 1 | 5 |
| Alani (Melicope knudsenii) | E | 1 | U | Y | D | 1 | 5 |
| Alani (Melicope lydgatei) | E | 1 | U | N | U | 1 | 5 |
| Alani (Melicope mucronulata) | E | 1 | U | N | U | 1 | 5 |
| Alani (Melicope pallida) | E | 1 | U | Y | D | 1 | 2 |
| Alani (Melicope quadrangularis) | E | 1 | U | Y | D | 1 | 5 |
| Alani (Melicope reflexa) | E | 1 | U | N | U | 1 | 8 |
| Alsinidendron obovatum (NCN) | E | 1 | D | Y | D | 1 | 2 |
| Alsinidendron trinerve (NCN) | E | 1 | I | Y | D | 1 | 2 |
| Alulu (=Brighamia, Rock's) | E | 1 | U | N | U | 1 | 2 |
| Amaranth, seabeach | T | 4 | D | N | U | 1 | 8C |
| Ambrosia, south Texas | E | 2 | U | N | U | 1 | 8 |
| Amphianthus, little | T | 4 | S | Y | F | 1 | 13 |
| Aristida chaseae | E | 4 | D | Y | D | 1 | 5C |
| Arrowhead, bunched | E | 4 | D | Y | F | 1 | 2C |
| Aster, decurrent false | T | 3 | I | Y | F | 1 | 5C |
| Aster, Florida golden | E | 4 | I | Y | F | 1 | 5 |
| Aster, Ruth's golden | E | 4 | D | Y | F | 1 | 5C |
| Auerodendron pauciflorum (NCN) | E | 4 | D | N | U | 1 | 5 |
| Aupaka (Isodendrion hosakae) | E | 1 | U | Y | F | 1 | 5 |
| Avens, spreading | E | 4 | D | Y | F | 1 | 2 |
| Awikiwiki | E | 1 | U | N | U | 1 | 2 |
| Awiwi (Centaurium sebaeoides) | E | 1 | U | Y | D | 1 | 9 |
| Awiwi (Hedyotis cookiana) | E | 1 | D | Y | D | 1 | 2 |
| Ayenia, Texas | E | 2 | U | N | U | 1 | 5 |
| Barberry, Truckee | E | 1 | S | Y | F | 4 | 2C |
| Bariaco (=guayabacon) | E | 4 | S | Y | F | 1 | 11 |
| Beaked-rush, Knieskern's | T | 5 | I | Y | F | 3 | 14 |
| Bear-poppy, dwarf | E | 6 | D | Y | F | 1 | 5C |
| Beardtongue, Penland | E | 6 | S | Y | F | 2 | 14 |
| Beargrass, Britton's | E | 4 | D | N | U | 1 | 8 |
| Beauty, Harper's | E | 4 | I | Y | F | 1 | 7 |
| Bellflower, Brooksville (=Robin's) | E | 4 | U | Y | F | 1 | 8 |
| Bidens, cuneate | E | 1 | NA | NA | NA | NA | NA |
| Birch, Virginia round-leaf | E | 5 | I | Y | R(2) | 3 | 8 |
| Bird's-beak, palmate bracted | E | 1 | I | N | U | 1 | 2C |
| Bird's-beak, salt marsh | E | 1 | S | Y | F | 1 | 6 |
| Birds-in-a-nest, white | T | 4 | U | Y | F | 1 | 8 |
| Bittercress, small-anthered | E | 4 | D | Y | F | 1 | 5 |
| Bladderpod, Dudley Bluffs | T | 6 | S | Y | F | 1 | 14 |
| Bladderpod, kodachrome | E | 6 | S | N | U | 1 | 14 |
| Bladderpod, lyrate | T | 4 | S | N | U | 1 | 8 |
| Bladderpod, Missouri | E | 3 | I | Y | F | 3 | 8 |
| Bladderpod, San Bernardino Mountains | E | 1 | S | N | U | 1 | 9 |
| Bladderpod, white | E | 2 | D | Y | F | 1 | 8 |
| Blazing-star, Ash Meadows | T,CH | 1 | U | Y | F | 2 | 8 |
| Blazing-star, Heller's | T | 4 | I | Y | F | 2 | 8 |
| Blazing-star, scrub | E | 4 | D | Y | F | 2 | 2 |
| Blue-star, Kearney's | E | 2 | U | Y | F | 1 | 2 |
| Bluegrass, Hawaiian | E | 1 | U | Y | D | 1 | 2 |
| Bluet, Roan Mountain | E | 4 | D | Y | D | 1 | 6 |
| Bonamia, Florida | T | 4 | I | Y | F | 3 | 8 |
| Boxwood, Vahl's | E | 4 | D | Y | F | 1 | 5 |
| Broom, San Clemente Island | E | 1 | I | Y | F | 4 | 9 |
| Buckwheat, clay-loving wild | E,CH | 6 | U | Y | F | 1 | 5 |
| Buckwheat, Cushenbury | E | 1 | S | N | U | 1 | 9 |
| Buckwheat, gypsum wild | T,CH | 2 | U | Y | F | 1 | 8 |
| Buckwheat, scrub | T | 4 | D | N | U | 1 | 15 |
| Buckwheat, steamboat | E | 1 | D | N | U | 1 | 3 |
| Bulrush, northeastern (=barbed bristle) | E | 5 | I | Y | F | 3 | 2C |
| Bush-clover, prairieI | T | 3 | I | Y | F | 2 | 8 |
| Bush-mallow, San Clemente Island | E | 1 | I | Y | F | 3 | 8 |
| Buttercup, autumn | E | 6 | D | Y | F | 1 | 6 |
| Butterwort, Godfrey's | T | 4 | S | Y | D | 1 | 14 |
| Button, Mohr's Barbara | E | 4 | I | Y | F | 1 | 14 |
| Button-celery, San Diego | E | 1 | U | N | U | 1 | 3C |
| Cactus, Arizona hedgehog | E | 2 | U | Y | D | 1 | 3 |
| Cactus, Bakersfield | E | 1 | D | N | U | 1 | 2 |
| Cactus, black lace | E | 2 | D | Y | F | 1 | 3 |
| Cactus, Brady pincushion | E | 2 | U | Y | F | 1 | 2 |
| Cactus, bunched cory | T | 2 | D | Y | F | 1 | 8 |
| Cactus, Chisos Mountain hedgehog | T | 2 | D | Y | F | 1 | 9 |
| Cactus Cochise pincushion | T | 2 | U | Y | F | 1 | 8 |
| Cactus, Davis' green pitaya | E | 2 | D | Y | F | 1 | 3 |
| Cactus, Key tree | E | 4 | S | Y | F | 3 | 5C |
| Cactus, Knowlton | E | 2 | S | Y | F | 2 | 2 |
| Cactus, Kuenzler hedgehog | E | 2 | S | Y | F | 1 | 3 |
| Cactus, Lee pincushion | T | 2 | S | Y | F | 2 | 3 |
| Cactus, Lloyd's hedgehog | E | 2 | U | NA | Exempt | 1 | 8 |
| Cactus, Lloyd's Mariposa | T | 2 | D | Y | F | 1 | 2 |
| Cactus, Mesa Verde | T | 2 | S | Y | F | 1 | 8C |
| Cactus, Nellie cory | E | 2 | D | Y | F | 1 | 2 |
| Cactus, Nichol's Turk's head | E | 2 | U | Y | F | 1 | 3 |
| Cactus, Peebles Navajo | E | 2 | U | Y | F | 1 | 3 |
| Cactus, Pima pineapple | E | 2 | U | N | U | 1 | 3 |
| Cactus, San Rafael | E | 6 | D | N | U | 1 | 5C |
| Cactus, Siler pincushion | T | 2 | U | Y | F | 2 | 8 |
| Cactus, Sneed pincushion | E | 2 | D | Y | F | 2 | 9 |
| Cactus, star | E | 2 | U | N | U | 1 | 2 |
| Cactus, Tobusch fishhook | E | 2 | D | Y | F | 1 | 2 |
| Cactus, Uinta Basin hookless | T | 6 | S | Y | F | 3 | 8 |
| Cactus, Wright fishhook | E | 6 | S | Y | F | 3 | 8 |
| Calyptranthes thomasiana (NCN) | E | 4 | D | N | U | 1 | 11 |
| Campion, fringed | E | 4 | D | N | U | 1 | 8 |
| Capa, Rosa (=pendula cimarrona) | E | 4 | D | Y | D | 1 | 11 |
| Cat's-eye, Terlingua Creek | E | 2 | U | Y | F | 1 | 5C |
| Catchfly, Perlman's | E | 1 | U | Y | D | 1 | 2 |
| Centaury, spring-loving | T,CH | 1 | S | Y | F | 2 | 8 |
| Chaff-flower, round-leaved | E | 1 | D | Y | D | 1 | 3 |
| Chaffseed, American | E | 5 | S | N | D | 1 | 7 |
| Chamaecrista glandulosa var. mirabilis (NCN) | E | 4 | D | Y | F | 1 | 2 |
| Chamaesyce halemanui (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Chamaesyce skottsbergii var. kalaeloana (NCN) | E | 1 | S | Y | D | 1 | 9 |
| Checker-mallow, Nelson's | T | 1 | D | N | U | 1 | 8C |
| Checker-mallow, pedate | E | 1 | D | N | U | 1 | 5C |
| Chumbo, higo | T | 4 | S | NA | NA | 1 | 14 |
| Cinquefoil, Robbins' | E,CH | 5 | S | Y | F | 4 | 2 |
| Cladonia, Florida perforate | E | 4 | S | N | U | 1 | 2 |
| Cliff-rose, Arizona | E | 2 | U | Y | D | 1 | 2 |
| Clover, running buffalo | E | 3 | I | Y | F | 2 | 2 |
| Cobana, Negra | T | 4 | S | N | U | 1 | 5 |
| Coneflower, smooth | E | 4 | D | Y | D | 1 | 5 |
| Coneflower, Tennessee purple | E | 4 | S | Y | R(1) | 2 | 8 |
| Coyote-thistle, Loch Lomond | E | 1 | S | NA | NA | 4 | 14 |
| Cranichis ricartii (NCN) | E | 4 | D | NA | NA | 1 | 5 |
| Cress, toad-flax (=shrubby reed-mustard) | E | 6 | D | Y | F | 1 | 10C |
| Cycladenia, Jones | T | 6 | S | N | U | 1 | 9 |
| Cypress, Santa Cruz | E | 1 | S | N | U | 1 | 2 |
| Daisy, lakeside | T | 3 | S | Y | F | 2 | 6C |
| Daisy, Maguire | E | 6 | S | Y | D | 4 | 6 |
| Daisy, Parish's | T | 1 | D | N | U | 1 | 8 |
| Daphnopsis hellerana (NCN) | E | 4 | D | Y | F | 1 | 5 |
| Dawn-flower (=bitterweed), Texas prairie | E | 2 | D | Y | F | 1 | 8C |
| Delissea rhytidosperma (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Desert-parsley (=lomatium), Bradshaw's | E | 1 | I | Y | F | 1 | 8 |
| Diablo, pelos del | E | 4 | D | Y | F | 1 | 5C |
| Diellia falcata (NCN) | E | 1 | U | Y | D | 1 | 11 |
| Diellia pallida (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Diellia unisora (NCN) | E | 1 | U | Y | D | 1 | 8 |
| Dogweed, ashy | E | 2 | D | Y | F | 1 | 5 |
| Dropwort, Canby's | E | 4 | S | Y | F | 2 | 5 |
| Elaphoglossum serpens (NCN) | E | 4 | D | Y | D | 1 | 5 |
| Erubia | E | 4 | D | Y | F | 1 | 2C |
| Eugenia woodburyana (NCN) | E | 4 | D | N | U | 1 | 5 |
| Evening-primrose, Antioch Dunes | E,CH | 1 | S | Y | R(1) | 2 | 9 |
| Evening-primrose, Eureka Valley | E | 1 | I | Y | F | 2 | 9 |
| Evening-primrose, San Benito | T | 1 | U | Y | D | 1 | 5C |
| Fern, Alabama streak-sorus | T | 4 | S | N | U | 1 | 9 |
| Fern, Aleutian shield | E | 7 | S | Y | F | 1 | 8 |
| Fern, American hart's-tongue | T | 4 | D | Y | F | 1 | 9 |
| Fern, Elfin tree | E | 4 | D | Y | F | 1 | 5 |
| Fiddleneck, large-flowered | E,CH | 1 | D | Y | D | 2 | 5 |
| Fleabane, Zuni (=rhizome) | T | 2 | S | Y | F | 2 | 8 |
| Four-o'clock, MacFarlane's | E | 1 | I | Y | F | 2 | 2 |
| Frankenia,Johnston's | E | 2 | I | Y | F | 1 | 5 |
| Fringe-tree, pygmy | E | 4 | I | Y | F | 2 | 2 |
| Gahnia lanaiensis (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Gardenia, Hawaiian (=na'u) | E | 1 | S | Y | R(1) | 1 | 2 |
| Geocarpon minimum (NCN) | T | 4 | S | Y | F | 1 | 13 |
| Gerardia, sandplain | E | 5 | S | Y | RD(1) | 1 | 5C |
| Gilia, Monterey | E | 1 | U | N | U | 1 | 3C |
| Goetzea, beautiful (matabuey) | E | 4 | D | Y | F | 1 | 5 |
| Goldenrod, Blue Ridge | T | 4 | U | Y | F | 1 | 8 |
| Goldenrod, Houghton's | T | 3 | S | Y | D | 1 | 8 |
| Goldenrod, Short's | E | 4 | S | Y | F | 2 | 8 |
| Goldenrod, white-haired | T | 4 | S | Y | F | 1 | 8 |
| Goldfields, Burke's | E | 1 | U | N | U | 1 | 2C |
| Gooseberry, Miccosukee | T | 4 | S | NA | Exempt | 1 | 14 |
| Gouania, Hillebrand's | E,CH | 1 | S | Y | F | 1 | 8 |
| Gouania meyenii (NCN) | E | 1 | U | Y | D | 1 | 8 |
| Gouania vitifolia | E | 1 | U | Y | D | 1 | 5 |
| Gourd, Okeechobee | E | 4 | S | N | U | 1 | 3 |
| Grass, California Orcutt | E | 1 | U | N | U | 1 | 5C |
| Grass, Eureka dune | E | 1 | I | Y | F | 3 | 7 |
| Grass, Solano | E | 1 | D | Y | F | 1 | 2 |
| Grass, Tennessee yellow-eyed | E | 4 | I | Y | F | 1 | 8 |
| Ground-plum, Guthrie's | E | 4 | U | N | U | 1 | 2 |
| Groundsel, San Francisco Peaks | T,CH | 2 | U | Y | F | 2 | 8 |
| Gumplant, Ash Meadows | T,CH | 1 | S | Y | F | 2 | 8 |
| Ha'iwale (Cyrtandra crenata) | E | 1 | U | N | U | 1 | 5 |
| Ha'iwale (Cyrtandra giffardii) | T | 1 | U | N | U | 1 | 2 |
| Ha'iwale (Cyrtandra limahuliensis) | E | 1 | U | Y | D | 1 | 14 |
| Ha'iwale (Cyrtandra munroi) | E | 1 | U | Y | D | 1 | 5 |
| Ha'iwale (Cyrtandra polyantha) | E | 1 | U | N | U | 1 | 5 |
| Ha'iwale (Cyrtandra tintinnabula) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea asarifolia) | E | 1 | U | Y | D | 1 | 5 |
| Haha (Cyanea copelandii ssp. copelandii) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea grimesiana ssp. obatae) | E | 1 | D | N | U | 1 | 2 |
| Haha (Cyanea hamatiflora ssp. carlsonii) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea lobata) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea macrostegia ssp. gibsonii) | E | 1 | U | Y | D | 1 | 6 |
| Haha (Cyanea mannii) | E | 1 | U | N | U | 1 | 2 |
| Haha (Cyanea mceldowneyi) | E | 1 | U | N | U | 1 | 2 |
| Haha (Cyanea pinnatifida) | E | 1 | U | Y | D | 1 | 5 |
| Haha (Cyanea procera) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea shipmanii) | E | 1 | D | N | U | 1 | 2 |
| Haha (Cyanea stictophylla) | E | 1 | U | N | U | 1 | 5 |
| Haha (Cyanea superba) | E | 1 | U | Y | D | 1 | 5 |
| Haha (Cyanea truncata) | E | 1 | D | N | U | 1 | 5 |
| Haha (Cyanea undulata) | E | 1 | U | Y | D | 1 | 11 |
| Haplostachys, narrow-leaved | E | 1 | U | Y | D | 1 | 2 |
| Harebells, Avon Park | E | 4 | S | N | U | 1 | 2C |
| Harperella | E | 5 | S | Y | F | 1 | 8 |
| Hau kuahiwi, Kauai | E | 1 | D | Y | D | 1 | 2 |
| Heartleaf, dwarf-flowered | T | 4 | S | N | U | 1 | 14 |
| Heather, mountain golden | T,CH | 4 | D | Y | F | 2 | 8 |
| Heau | E | 1 | U | Y | D | 1 | 2 |
| Hedyotis degeneri (NCN) | E | 1 | U | N | U | 1 | 5 |
| Hedyotis parvula (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Hedyotis st.-johnii (NCN) | E | 1 | U | Y | D | 1 | 11 |
| Hesperomannia arborescens (NCN) | E | 1 | U | N | U | 1 | 5 |
| Hesperomannia arbuscula (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Hesperomannia lydgatei (NCN) | E | 1 | U | Y | D | 1 | 11 |
| Hibiscus, Clay's | E | 1 | U | Y | D | 1 | 2 |
| Higuero de Sierra | E | 4 | S | Y | F | 1 | 5 |
| Holei | E | 1 | U | N | U | 1 | 5 |
| Holly, Cook's | E | 4 | D | Y | F | 1 | 5 |
| Howellia, water | T | 6 | U | N | U | 1 | 7 |
| Hypericum, highlands scrub | E | 4 | I | Y | F | 3 | 2 |
| Ihi'ihi (Marsilea villosa) | E | 1 | I | Y | D | 1 | 8 |
| Ilex sintenisii (NCN) | E | 4 | D | Y | D | 1 | 11 |
| lliau, dwarf | E | 1 | U | Y | D | 1 | 5 |
| Ipomopsis, Holy Ghost | E | 2 | U | N | U | 1 | 5 |
| Iris, dwarf lake | T | 3 | S | N | U | 1 | 8 |
| Irisette, white | E | 4 | D | Y | D | 1 | 8 |
| Ischaemum, hilo | E | 1 | U | N | U | 1 | 8 |
| Ivesia, Ash Meadows | T,CH | 1 | S | Y | F | 2 | 8 |
| Jacquemontia, beach | E | 4 | S | N | U | 1 | 2 |
| Jewelflower California | E | 1 | S | N | U | 1 | 2 |
| Joint-vetch, sensitive | T | 5 | S | N | D | 1 | 2 |
| Kamakahala | E | 1 | U | Y | D | 1 | 11 |
| Kauila. | E | 1 | D | N | U | 1 | 5 |
| Kaulu | E | 1 | U | Y | D | 1 | 5 |
| Kio'ele (Hedyotis coriacea) | E | 1 | U | N | U | 1 | 2 |
| Ko'oko'olau (Biclens micrantha ssp. kalealaha) | E | 1 | U | N | U | 1 | 9 |
| Ko'oko'olau (Bidens wiebkei) | E | 1 | U | N | U | 1 | 2 |
| Ko'okoa'ula (=Abutilon, Menzies') | E | 1 | I | Y | D | 1 | 2C |
| Koki'o (=hau-hele'ula) | E,CH | 1 | D | Y | F | 1 | 5 |
| Koki'o ke'oke'o (Hibiscus arnottianus ssp. immaculatus) | E | 1 | U | N | U | 1 | 3. |
| Kokio, Cooke's | E | 1 | S | N | NA | 1 | 5 |
| Kulu'i | E | 1 | U | Y | D | 1 | 8 |
| Ladies'-tresses, Navasota | E | 2 | D | Y | F | 1 | 2 |
| Ladies'-tresses, Ute | T | 6 | D | N | U | 1 | 2C |
| Larkspur, San Clemente Island | E | 1 | I | Y | F | 3 | 8 |
| Laukahi kuahiwi | E | 1 | U | N | U | 1 | 5 |
| Layia, beach (=Tidytips, beach) | E | 1 | U | N | U | 1 | 2 |
| Lead-plant, crenulate | E | 4 | S | Y | F | 2 | 5C |
| Leather-flower, Alabama | E | 4 | S | Y | F | 1 | 2 |
| Leather-flower, Morefield's | E | 4 | D | Y | F | 1 | 5 |
| Lepanthes eltoroensis (NCN) | E | 4 | U | NA | NA | 1 | 5 |
| Leptocereus grantianus (NCN) | E | 4 | D | Y | D | 1 | 5C |
| Liliwai | E | 1 | U | N | U | 1 | 5 |
| I.ily, Minnesota dwarf trout | E | 3 | U | Y | F | 2 | 8C |
| Lily, western (Lilium occidentale) | E | 1 | D | N | U | 1 | 2 |
| Live-forever, Santa Barbara Island | E | 1 | S | Y | F | 1 | 8C |
| Lobelia niihauensis (NCN) | E | 1 | U | N | U | 1 | 11 |
| Lobelia oahuensis (NCN) | E | 1 | U | N | U | 1 | 5 |
| Locoweed, Fassett's | T | 3 | I | Y | F | 1 | 9 |
| Loosestrife, rough-leaved | E | 4 | U | Y | D | 1 | 8 |
| Loulu (Pritchardia affinis) | E | 1 | U | N | U | 1 | 5 |
| Loulu (Pritchardia munroi) | E | 1 | S | N | U | 1 | 2 |
| Lousewort, Furbish | E | 5 | S | Y | R(1) | 3 | 14 |
| Lupine, clover (=Lupine, Point Reyes) | E | 1 | U | N | U | 1 | 8 |
| Lupine, scrub | E | 4 | D | Y | F | 2 | 2C |
| Lyonia truncata var. proctorii (NCN) | E | 4 | D | Y | D | 1 | 6C |
| Lysimachia filifolia (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Lysimachia lydgatei (NCN) | E | 1 | U | N | U | 1 | 2 |
| Mahoe (Alectryon macrococcus) | E | 1 | D | N | U | 1 | 5 |
| Makou | T | 1 | U | Y | D | 1 | 8 |
| Mallow, Kern | E | 1 | S | N | U | 1 | 2 |
| Mallow, Peters Mountain | E | 5 | I | Y | F | 3 | 5 |
| Manioc, Walker's | E | 2 | U | Y | F | 1 | 5 |
| Manzanita, Presidio (=Raven's ) | E | 1 | S | Y | F | 2 | 12 |
| Mariscus fauriei (NCN) | E | 1 | U | N | U | 1 | 14 |
| Maua (Xylosma crenatum) | E | 1 | U | Y | D | 1 | 5 |
| Meadowfoam, Butte County | E | 1 | D | N | U | 1 | 2C |
| Meadowfoam, Sebastopol | E | 1 | D | N | U | 1 | 2C |
| Meadowrue, Cooley's | E | 4 | S | Y | F | 2 | 2 |
| Milk-vetch, Applegate's | E | 1 | D | N | U | 1 | 5 |
| Milk-vetch, Ash Meadows | T,CH | 1 | S | Y | F | 2 | 8 |
| Milk-vetch, Cushenbury | E | 1 | D | N | U | 1 | 8 |
| Milk-vetch, Heliotrope | T,CH | 6 | U | N | U | 1 | 17 |
| Milk-vetch, Jesup's | E | 5 | S | Y | F | 1 | 7C |
| Milk-vetch, Mancos | E | 2 | D | Y | F | 1 | 5C |
| Milk-vetch, Osterhout | E | 6 | D | Y | F | 2 | 2 |
| Milk-vetch, sentry | E | 2 | D | Y | D | 1 | 3 |
| Milkpea, Small's | E | 4 | D | Y | F | 1 | 5C |
| Milkweed, Mead's | T | 3 | D | N | U | 1 | 8 |
| Milkweed, Welsh's | T,CH | 6 | D | Y | F | 1 | 5C |
| Mint, Garrett's (=scrub) | E | 4 | D | Y | F | 1 | 2C |
| Mint, Lakela's | E | 4 | S | Y | F | 2 | 2C |
| Mint, longspurred | E | 4 | D | Y | F | 1 | 2C |
| Mint, San Diego mesa | E | 1 | D | N | U | 1 | 5 |
| Mint, Otay Mesa | E | 1 | U | N | U | 1 | 2C |
| Mint, scrub | E | 4 | D | Y | F | 1 | 2 |
| Mitracarpus maxwellidae (NCN) | E | 4 | D | N | U | 1 | 5 |
| Mitracarpus polycladus (NCN) | E | 4 | D | N | U | 1 | 5 |
| Monkey-flower, Michigan | E | 3 | S | Y | D | 1 | 9C |
| Monkshood, northern wild | T | 3 | U | Y | RD(1) | 2 | 8 |
| Munroidendron racemosum (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Mustard, Carter's | E | 4 | D | Y | F | 1 | 2 |
| Mustard, Penland alpine fen | T | 6 | U | N | U | 1 | 11C |
| Mustard, slender-petaled | E | 1 | D | N | U | 1 | 5C |
| Myrcia paganii (NCN) | E | 4 | U | N | U | 1 | 8 |
| Naupaka, dwarf | E | 1 | S | N | U | 1 | 2 |
| Na'ena'e (Dubautia herbstobatae) | E | 1 | U | Y | D | 1 | 2 |
| Na'ena'e (Dubautia latifolia) | E | 1 | U | Y | D | 1 | 5 |
| Na'ena'e (Dubautia pauciflorula) | E | 1 | U | Y | D | 1 | 8 |
| Nehe (Lipochaeta fauriei) | E | 1 | U | Y | D | 1 | 2 |
| Nehe (Lipochaeta kamolensis) | E | 1 | U | N | U | 1 | 2 |
| Nehe (Lipochaeta lobata var. leptophylla) | E | 1 | U | Y | D | 1 | 6 |
| Nehe (Lipochaeta micrantha) | E | 1 | U | Y | D | 1 | 2 |
| Nehe (Lipochaeta tenuifolia) | E | 1 | U | Y | D | 1 | 8 |
| Nehe (Lipochaeta venosa) | E | 1 | U | Y | D | 1 | 5 |
| Nehe (Lipochaeta waimeaensis) | E | 1 | U | Y | D | 1 | 2 |
| Neraudia angulata (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Nioi | E | 1 | U | N | U | 1 | 5 |
| Niterwort, Amargosa | E,CH | 1 | S | Y | F | 2 | 8 |
| Nohoanu (Geranium arboreum) | E | 1 | U | N | U | 1 | 2 |
| Nohoanu (Geranium multiflorum) | E | 1 | U | N | U | 1 | 8 |
| Oak, Hinckley's | T | 2 | D | Y | F | 1 | 8 |
| Oha wai (Clermontia lindseyana) | E | 1 | U | N | U | 1 | 2 |
| Oha wai (Clermontia oblongifolia ssp. brevipes) | E | 1 | U | N | U | 1 | 6 |
| Oha wai (Clermontia oblongifolia ssp. mauiensis) | E | 1 | U | N | U | 1 | 6 |
| Oha wai (Clermontia peleana) | E | 1 | U | N | U | 1 | 5 |
| Oha wai (Clermontia pyrularia) | E | 1 | U | N | U | 1 | 2 |
| Ohe'ohe | E | 1 | U | N | U | 1 | 5 |
| Olulu | E | 1 | D | Y | D | 1 | 2 |
| Opuhe | E | 1 | U | Y | D | 1 | 5 |
| Orchid, eastern prairie fringed | T | 3 | U | Y | D | 1 | 8 |
| Orchid, western prairie fringed | T | 3 | S | Y | D | 1 | 8 |
| Oxytheca, Cushenbury | E | 1 | S | N | U | 1 | 9 |
| Paintbrush, San Clemente Island Indian | E | 1 | I | Y | F | 1 | 8 |
| Palma de, Manaca (=manac palm) | T | 4 | D | Y | F | 2 | 8 |
| Palo colorado | E | 4 | S | Y | D | 1 | 11 |
| Palo de jazmin | E | 4 | U | Y | D | 1 | 5 |
| Palo de nigua | E | 4 | D | Y | F | 1 | 5 |
| Palo de Ramon | E | 4 | D | Y | F | 1 | 5 |
| Palo de Rosa | E | 4 | S | Y | F | 1 | 8 |
| Pamakani | E | 1 | U | Y | D | 1 | 3 |
| Panicgrass, Carter's | E,CH | 1 | S | Y | D | 1 | 9 |
| Pawpaw, beautiful | E | 4 | D | Y | F | 1 | 2 |
| Pawpaw, four-petal | E | 4 | S | Y | F | 2 | 11 |
| Pawpaw, Rugel's | E | 4 | D | Y | F | 1 | 2 |
| Pennyroyal, Todsen's | E,CH | 2 | I | Y | F | 1 | 8 |
| Penstemon, blowout | E | 6 | S | Y | F | 2 | 11C |
| Peperomia, Wheeler's | E | 4 | S | Y | F | 1 | 5 |
| Phacelia, clay | E | 6 | D | Y | F | 1 | 5 |
| Phacelia, North Park | E | 6 | U | Y | F | 2 | 5 |
| Phlox, Texas trailing | E | 2 | U | Y | D | 1 | 3 |
| Phyllostegia glabra var. lanaiensis (NCN) | E | 1 | U | Y | D | 1 | 3 |
| Phyllostegia mannii (NCN) | E | 1 | U | N | U | 1 | 2 |
| Phyllostegia mollis (NCN) | E | 1 | U | Y | D | 1 | 8 |
| Phyllostegia waimeae (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Pilo (Hedyotis mannii) | E | 1 | U | U | U | 1 | 5 |
| Pink, swamp | T | 5 | S | Y | F | 1 | 7C |
| Pinkroot, gentian | E | 4 | D | N | U | 1 | 2 |
| Pitaya, Davis' green | E | 2 | D | Y | F | 1 | 3 |
| Pitcher-plant, Alabama canebrake | E | 4 | D | Y | F | 1 | 6 |
| Pitcher-plant, green | E | 4 | I | Y | RD(2) | 2 | 8 |
| Pitcher-plant, mountain sweet | E | 4 | S | Y | F | 2 | 3 |
| Plum, scrub | E | 4 | D | Y | F | 2 | 2 |
| Poa siphonoglossa (NCN) | E | 1 | D | Y | D | 1 | 2 |
| Po'e (Portulaca sclerocarpa) | E | 1 | U | N | U | 1 | 2 |
| Pogonia, small-whorled | E | 5 | I | Y | R(1) | 3 | 14 |
| Polygala, Lewton's | E | 4 | D | N | U | 1 | 8 |
| Polygala, tiny | E | 4 | S | Y | F | 2 | 5C |
| Polystichum calderonense (NCN) | E | 4 | D | Y | D | 1 | 5 |
| Pondberry | E | 4 | S | Y | F | 1 | 8 |
| Pondweed, Little Aguja Creek | E | 2 | D | Y | F | 1 | 5 |
| Poppy-mallow, Texas | E | 2 | D | Y | F | 1 | 2 |
| Poppy, Sacramento prickly | E | 2 | U | Y | F | 1 | 3 |
| Potato-bean, Price's | T | 4 | S | Y | F | 1 | 8 |
| Prairie-clover, leafy | E | 4 | D | Y | F | 1 | 5 |
| Prickly-apple, fragrant | E | 4 | D | Y | F | 1 | 3 |
| Prickly-ash, St. Thomas | E | 4 | D | Y | F | 1 | 2C |
| Primrose, Maguire | T | 6 | D | Y | F | 2 | 5C |
| Quillwort, black-spored | E | 4 | S | Y | F | 1 | 5 |
| Quillwort, Louisiana | E | 4 | S | N | U | 1 | 8 |
| Quillwort, mat-forming | E | 4 | S | Y | F | 1 | 8 |
| Rattleweed, hairy (=wild indigo) | E | 4 | D | Y | F | 1 | 8 |
| Reed-mustard, Barneby | E | 6 | U | Y | F | 1 | 5 |
| Reed-mustard, clay | T | 6 | U | Y | F | 1 | 14 |
| Remya kauaiensis (NCN) | E | 1 | U | Y | D | 1 | 11 |
| Remya mauiensis (NCN) | E | 1 | U | N | U | 1 | 5 |
| Remya montgomeryi (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Rhododendron, Chapman's | E | 4 | D | Y | F | 1 | 8C |
| Ridge-cress (=pepper-cress), Barneby | E | 6 | D | Y | F | 1 | 5C |
| Rock-cress, McDonald's | E | 1 | S | Y | F | 3 | 2 |
| Rock-cress, shale barren | E | 5 | S | Y | F | 2 | 11 |
| Rollandia crispa (NCN) | E | 1 | U | N | U | 1 | 5 |
| Rosemary, Apalachicola | E | 4 | I | Y | F | 1 | 8 |
| Rosemary, Cumberland | T | 4 | U | N | U | 1 | 8 |
| Rosemary, Etonia | E | 4 | S | Y | F | 1 | 2C |
| Rosemary, short-leaved | E | 4 | S | N | U | 1 | 8C |
| Roseroot, Leedy's | T | 3 | S | Y | D | 1 | 9 |
| Rush-pea, slender | E | 2 | D | Y | F | 1 | 2 |
| Sand-verbena, large-fruited | E | 2 | D | Y | F | 1 | 2 |
| Sandalwood, Lanai (='iliahi) | E | 1 | S | Y | D | 1 | 3 |
| Sandlace | E | 4 | D | N | U | 2 | 8 |
| Sandwort, Cumberland | E | 4 | U | Y | D | 1 | 8 |
| Sandwort, marsh | E | 1 | D | N | U | 1 | 5C |
| Sanicula mariversa (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Schiedea apokremnos (NCN) | E | 1 | U | Y | D | 1 | 8 |
| Schiedea, Diamond Head | E | 1 | S | Y | F | 1 | 2 |
| Schiedea haleakalensis (NCN) | E | 1 | U | N | U | 1 | 2 |
| Schiedea kaalae (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Schiedea lydgatei (NCN) | E | 1 | U | N | U | 1 | 8 |
| Schiedea spergulina var. leiopoda (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Schiedea spergulina var. spergulina (NCN) | T | 1 | U | Y | D | 1 | 8 |
| Schoepfia arenaria (NCN) | T | 4 | D | Y | F | 1 | 5C |
| Sedge, Navajo | T,CH | 2 | U | Y | F | 1 | 8 |
| Serianthus nelsonii [Hyun lagu (Guam), Trokon guafi (Rota)] | E | 1 | D | Y | F | 1 | 5 |
| Silene alexandri (NCN) | E | 1 | U | N | U | 1 | 2 |
| Silene hawaiiensis (NCN) | T | 1 | U | N | U | 1 | 8 |
| Silene lanceolata (NCN) | E | 1 | U | N | U | 1 | 2 |
| Silversword, Haleakala (='ahinahina) | T | 1 | S | Y | D | 1 | 9 |
| Silversword, Ka'u | E | 1 | U | Y | D | 1 | 5 |
| Silversword, Mauna Kea (='ahinahina) | E | 1 | D | Y | F | 1 | 6 |
| Skullcap, Florida | T | 4 | S | Y | F | 1 | 2 |
| Skullcap, large-flowered | E | 4 | S | Y | D | 1 | 8 |
| Snakeroot, scrub-celery | E | 4 | D | Y | F | 2 | 2 |
| Snowbells, Texas | E | 2 | I | Y | F | 1 | 2 |
| Spineflower, Ben Lomond | E | 1 | U | N | U | 1 | 2C |
| Spineflower, Howell's | E | 1 | D | N | U | 1 | 2 |
| Spineflower, Monterey | T | 1 | S | N | U | 1 | 9C |
| Spineflower, robust | E | 1 | D | N | U | 1 | 9C |
| Spineflower, slender-horned | E | 1 | U | N | U | 1 | 1C |
| Spineflower, Sonoma | E | 1 | D | N | U | 1 | 2 |
| Spiraea, Virginia | T | 5 | S | Y | F | 1 | 8 |
| Spurge, deltoid | E | 4 | D | Y | F | 2 | 6C |
| Spurge, Garber's | T | 4 | S | Y | F | 2 | 8 |
| Spurge, telephus | T | 4 | S | Y | F | 1 | 2 |
| Stenogyne bifida (NCN) | E | 1 | U | N | U | 1 | 2 |
| Stenogyne campanulata (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Stenogyne, kanehoana | E | 1 | U | Y | D | 1 | 2 |
| Stenogyne, narrow-leaved | E | 1 | S | Y | D | 1 | 2 |
| Sumac, Michaux's | E | 4 | D | Y | F | 1 | 2 |
| Sunflower, Schweinitz's | E | 4 | D | Y | F | 1 | 5 |
| Sunray, Ash Meadows | T,CH | 1 | S | Y | F | 2 | 9 |
| Sunshine, Sonoma (=Stickyseed, Baker's) | E | 1 | D | N | U | 1 | 5C |
| Tectaria estremerana (NCN) | E | 4 | U | Y | D | 1 | 8 |
| Ternstroemia subsessilis | E | 4 | S | Y | D | 1 | 11 |
| Tetramolopium arenarium (NCN) | E | 1 | D | N | U | 1 | 5 |
| Tetramolopium filiforme (NCN) | E | 1 | U | N | U | 1 | 2 |
| Tetramolopium lepidotum ssp. lepidotum (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Tetramolopium remyi (NCN) | E | 1 | U | Y | D | 1 | 5 |
| Tetramolopium rockii (NCN) | T | 1 | U | N | U | 1 | 14 |
| Thelypteris inabonensis (NCN) | E | 4 | U | Y | D | 1 | 5 |
| Thelypteris verecunda (NCN) | E | 4 | U | Y | D | 1 | 5 |
| Thelypteris yaucoensis (NCN) | E | 4 | D | Y | D | 1 | 5 |
| Thistle, Pitcher's | T | 3 | D | Y | D | 1 | 8C |
| Thistle, Sacramento Mountains | T | 2 | S | Y | F | 1 | 2 |
| Thornmint, San Mateo | E | 1 | D | N | U | 1 | 6C |
| Torreya, Florida | E | 4 | D | Y | F | 1 | 5 |
| Townsendia, Last Chance | T | 6 | U | Y | F | 1 | 5C |
| Trillium, persistent | E | 4 | S | Y | F | 2 | 8 |
| Trillium, relict | E | 4 | D | Y | F | 1 | 8 |
| Twinpod, Dudley Bluffs | T | 6 | S | Y | F | 2 | 14 |
| Uhiuhi | E | 1 | D | Y | D | 1 | 5 |
| Vernonia proctorii (NCN) | E | 4 | D | Y | D | 1 | 5C |
| Vetch, Hawaiian | E | 1 | S | Y | F | 1 | 2C |
| Viola helenae (NCN) | E | 1 | U | Y | D | 1 | 8 |
| Viola lanaiensis (NCN) | E | 1 | U | Y | D | 1 | 2 |
| Wahine noho kula (Isodendrion pyrifolium) | E | 1 | U | N | U | 1 | 2 |
| Wallflower, Ben Lomond | E | 1 | U | N | U | 1 | 2C |
| Wallflower, Contra Costa | E,CH | 1 | S | Y | R(1) | 2 | 6 |
| Wallflower, Menzies' | E | 1 | D | N | U | 1 | 2C |
| Warea, clasping (=wide-leaf) | E | 4 | D | Y | F | 1 | 2C |
| Water-plantain, Kral's | T | 4 | S | Y | F | 1 | 5C |
| Water-willow, Cooley's | E | 4 | U | Y | F | 1 | 8 |
| Watercress, Gambel's | E | 1 | D | N | U | 1 | 2C |
| Wawae'iole (Huperzia (=Lycopodium) nutans) | E | 1 | U | N | U | 1 | 5 |
| Wawae'iole (Huperzia (=Lycopodium) mannii) | E | 1 | U | N | U | 1 | 5 |
| Whitlow-wort, papery | T | 4 | D | Y | F | 3 | 8 |
| Wild-rice, Texas | E,CH | 2 | D | Y | F | 1 | 2C |
| Wings, pigeon | T | 4 | U | N | U | 1 | 14 |
| Wire-lettuce, Malheur | E,CH | 1 | U | Y | F | 2 | 2 |
| Wireweed (=Polygonella basiramia) | E | 4 | D | Y | F | 3 | 2 |
| Woolly-star, Hoover's | T | 1 | I | N | U | 1 | 2 |
| Woolly-star, Santa Ana River | E | 1 | D | N | U | 1 | 3C |
| Wooly-threads, San Joaquin | E | 1 | D | N | U | 1 | 2 |
| Ziziphus, Florida | E | 4 | S | Y | F | 2 | 5 |