| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| ALAL60 | Allantoparmelia almquistii (Vainio) Essl. | | Parmeliaceae
|
| ALAL61 | Allantoparmelia alpicola (Th. Fr.) Essl. | | Parmeliaceae
|
| ALSI7 | Allantoparmelia siberica (Zahlbr.) Essl. | | Parmeliaceae
|
| ALLAN2 | Allantoparmelia (Vainio) Essl. | allantoparmelia | Parmeliaceae
|
| ALCA18 | Allarthonia caesia Flotow | Arthonia caesia | Arthoniaceae
|
| ALOC2 | Allenrolfea occidentalis (S. Wats.) Kuntze | iodinebush | Chenopodiaceae
|
| ALLEN | Allenrolfea Kuntze | allenrolfea | Chenopodiaceae
|
| ALAL8 | Alliaria alliaria (L.) Britt. | Alliaria petiolata | Brassicaceae
|
| ALOF3 | Alliaria officinalis Andrz. ex Bieb. | Alliaria petiolata | Brassicaceae
|
| ALPE4 | Alliaria petiolata (Bieb.) Cavara & Grande | garlic mustard | Brassicaceae
|
| ALLIA | Alliaria Heister ex Fabr. | alliaria | Brassicaceae
|
| ALIN9 | Allibertia intermedia Marion | Manfreda virginica | Agavaceae
|
| ALAL5 | Allionia albida Walt. | Mirabilis albida | Nyctaginaceae
|
| ALBR9 | Allionia bracteata Rydb. | Mirabilis albida | Nyctaginaceae
|
| ALCA13 | Allionia carletonii Standl. | Mirabilis glabra | Nyctaginaceae
|
| ALCH | Allionia choisyi Standl. | annual windmills | Nyctaginaceae
|
| ALCI2 | Allionia ciliata Standl. | Mirabilis glabra | Nyctaginaceae
|
| ALCO5 | Allionia coahuilensis Standl. | Mirabilis albida | Nyctaginaceae
|
| ALCO7 | Allionia comata Small | Mirabilis comata | Nyctaginaceae
|
| ALCO8 | Allionia corymbosa (Cav.) Kuntze | Mirabilis glabrifolia | Nyctaginaceae
|
| ALCR2 | Allionia cristata (Standl.) Standl. | Allionia incarnata var. incarnata | Nyctaginaceae
|
| ALDE3 | Allionia decipiens Standl. | Mirabilis decipiens | Nyctaginaceae
|
| ALDE4 | Allionia decumbens (Nutt.) Spreng. | Mirabilis linearis | Nyctaginaceae
|
| ALEX | Allionia exaltata Standl. | Mirabilis glabra | Nyctaginaceae
|
| ALGA | Allionia gausapoides Standl. | Mirabilis linearis | Nyctaginaceae
|
| ALGI2 | Allionia gigantea Standl. | Mirabilis gigantea | Nyctaginaceae
|
| ALGL7 | Allionia glabra (S. Wats.) Kuntze | Mirabilis glabra | Nyctaginaceae
|
| ALGR6 | Allionia grayana Standl. | Mirabilis albida | Nyctaginaceae
|
| ALHI3 | Allionia hirsuta Pursh | Mirabilis hirsuta | Nyctaginaceae
|
| ALINI | Allionia incarnata L. var. incarnata | trailing windmills | Nyctaginaceae
|
| ALINN | Allionia incarnata L. var. nudata (Standl.) Munz | trailing windmills | Nyctaginaceae
|
| ALINV2 | Allionia incarnata L. var. villosa (Standl.) B.L. Turner | trailing windmills | Nyctaginaceae
|
| ALIN | Allionia incarnata L. | trailing windmills | Nyctaginaceae
|
| ALLI3 | Allionia linearis Pursh | Mirabilis linearis | Nyctaginaceae
|
| ALNY | Allionia nyctaginea Michx. | Mirabilis nyctaginea | Nyctaginaceae
|
| ALPA10 | Allionia pauciflora (Buckl.) Standl. | Mirabilis albida | Nyctaginaceae
|
| ALPS2 | Allionia pseudaggregata (Heimerl) Weatherby | Mirabilis albida | Nyctaginaceae
|
| ALPU7 | Allionia pumila Standl. | Mirabilis pumila | Nyctaginaceae
|
| ALRO6 | Allionia rotata Standl. | Mirabilis albida | Nyctaginaceae
|
| ALRO5 | Allionia rotundifolia Greene | Mirabilis rotundifolia | Nyctaginaceae
|
| ALTE8 | Allionia texensis (Coult.) Small | Mirabilis texensis | Nyctaginaceae
|
| ALLIO | Allionia L. | windmills | Nyctaginaceae
|
| ALOX2 | Allioniella oxybaphoides (Gray) Rydb. | Mirabilis oxybaphoides | Nyctaginaceae
|
| ALAA | Allium aaseae Ownbey | South Idaho onion | Liliaceae
|
| ALAB2 | Allium abramsii (Ownbey & Aase) McNeal | Abrams' allium | Liliaceae
|
| ALAC3 | Allium acetabulum (Raf.) Shinners | Allium canadense var. canadense | Liliaceae
|
| ALACC | Allium acuminatum Hook. var. cuspidatum Fern. | Allium acuminatum | Liliaceae
|
| ALAC4 | Allium acuminatum Hook. | tapertip onion | Liliaceae
|
| ALAF | Allium aflatunense B. Fedtsch. | | Liliaceae
|
| ALAL4 | Allium allegheniense Small | | Liliaceae
|
| ALAM6 | Allium ambiguum M.E. Jones | Allium obtusum var. obtusum | Liliaceae
|
| ALAMA2 | Allium ampeloprasum L. var. ampeloprasum | broadleaf wild leek | Liliaceae
|
| ALAMA | Allium ampeloprasum L. var. atroviolaceum (Boiss.) Regel | broadleaf wild leek | Liliaceae
|
| ALAMP | Allium ampeloprasum L. var. porrum (L.) Gay | Allium porrum | Liliaceae
|
| ALAM | Allium ampeloprasum L. | broadleaf wild leek | Liliaceae
|
| ALAM2 | Allium amplectens Torr. | narrowleaf onion | Liliaceae
|
| ALAN | Allium anceps Kellogg | twinleaf onion | Liliaceae
|
| ALAR7 | Allium arenicola Osterhout, non Small | Allium geyeri var. tenerum | Liliaceae
|
| ALAR4 | Allium arenicola Small | Allium canadense var. mobilense | Liliaceae
|
| ALAR6 | Allium aridum Rydb. | Allium textile | Liliaceae
|
| ALAS2 | Allium ascalonicum L. | wild onion | Liliaceae
|
| ALATI2 | Allium atrorubens S. Wats. ssp. inyoensis (M.E. Jones) Traub | Allium atrorubens var. cristatum | Liliaceae
|
| ALATA | Allium atrorubens S. Wats. var. atrorubens | darkred onion | Liliaceae
|
| ALATC | Allium atrorubens S. Wats. var. cristatum (S. Wats.) McNeal | darkred onion | Liliaceae
|
| ALATI3 | Allium atrorubens S. Wats. var. inyoensis (M.E. Jones) Ownbey & Aase | Allium atrorubens var. cristatum | Liliaceae
|
| ALAT | Allium atrorubens S. Wats. | darkred onion | Liliaceae
|
| ALAT2 | Allium attenuifolium Kellogg | Allium amplectens | Liliaceae
|
| ALAU2 | Allium austinae M.E. Jones | Allium campanulatum | Liliaceae
|
| ALBA4 | Allium bakeri Regel | Allium chinense | Liliaceae
|
| ALBI4 | Allium bidwelliae S. Wats. | Allium campanulatum | Liliaceae
|
| ALBI | Allium bigelovii S. Wats. | Bigelow's onion | Liliaceae
|
| ALBIB | Allium bisceptrum S. Wats. var. bisceptrum | twincrest onion | Liliaceae
|
| ALBIP | Allium bisceptrum S. Wats. var. palmeri (S. Wats.) Cronq. | aspen onion | Liliaceae
|
| ALBI2 | Allium bisceptrum S. Wats. | twincrest onion | Liliaceae
|
| ALBI3 | Allium bivalve (L.) Kuntze | Nothoscordum bivalve | Liliaceae
|
| ALBOB | Allium bolanderi S. Wats. var. bolanderi | Bolander's onion | Liliaceae
|
| ALBOM | Allium bolanderi S. Wats. var. mirabile (Henderson) McNeal | Bolander's onion | Liliaceae
|
| ALBOS | Allium bolanderi S. Wats. var. stenanthum (E. Drew) Jepson | Bolander's onion | Liliaceae
|
| ALBO | Allium bolanderi S. Wats. | Bolander's onion | Liliaceae
|
| ALBR | Allium brandegeei S. Wats. | Brandegee's onion | Liliaceae
|
| ALBR2 | Allium brevistylum S. Wats. | shortstyle onion | Liliaceae
|
| ALBR8 | Allium breweri S. Wats. | Allium falcifolium | Liliaceae
|
| ALBU2 | Allium burdickii (Hanes) A.G. Jones | narrowleaf wild leek | Liliaceae
|
| ALBU | Allium burlewii A. Davids. | Burlew's onion | Liliaceae
|
| ALCAB | Allium campanulatum S. Wats. var. bidwelliae (S. Wats.) Jepson | Allium campanulatum | Liliaceae
|
| ALCA2 | Allium campanulatum S. Wats. | dusky onion | Liliaceae
|
| ALCAE2 | Allium canadense L. ssp. ecristatum (M.E. Jones) Traub & Ownbey | Allium canadense var. ecristatum | Liliaceae
|
| ALCAH2 | Allium canadense L. ssp. hyacinthoides (Bush) Traub & Ownbey | Allium canadense var. hyacinthoides | Liliaceae
|
| ALCAL2 | Allium canadense L. ssp. lavandulare (Bates) Traub & Ownbey | Allium canadense var. lavandulare | Liliaceae
|
| ALCAM2 | Allium canadense L. ssp. mobilense (Regel) Traub & Ownbey | Allium canadense var. mobilense | Liliaceae
|
| ALCAC | Allium canadense L. var. canadense | meadow garlic | Liliaceae
|
| ALCAE | Allium canadense L. var. ecristatum (M.E. Jones) Ownbey | meadow garlic | Liliaceae
|
| ALCAF | Allium canadense L. var. fraseri Ownbey | Fraser meadow garlic | Liliaceae
|
| ALCAH | Allium canadense L. var. hyacinthoides (Bush) Ownbey & Aase | hyacinth meadow garlic | Liliaceae
|
| ALCAL | Allium canadense L. var. lavandulare (Bates) Ownbey & Aase | meadow garlic | Liliaceae
|
| ALCAM | Allium canadense L. var. mobilense (Regel) Ownbey | meadow garlic | Liliaceae
|
| ALCAO | Allium canadense L. var. ovoideum Farw. | Allium canadense var. canadense | Liliaceae
|
| ALCAR | Allium canadense L. var. robustum Farw. | Allium canadense var. canadense | Liliaceae
|
| ALCA3 | Allium canadense L. | meadow garlic | Liliaceae
|
| ALCA12 | Allium cascadense M.E. Peck | Allium crenulatum | Liliaceae
|
| ALCEA2 | Allium cepa L. var. aggregatum G. Don | Allium cepa var. cepa | Liliaceae
|