| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| ACRE3 | Acroptilon repens (L.) DC. | hardheads | Asteraceae
|
| ACROP | Acroptilon Cass. | hardheads | Asteraceae
|
| ACSP11 | Acroscyphus sphaerophoroides Leveille | | Caliciaceae
|
| ACROS2 | Acroscyphus Leveille | acroscyphus | Caliciaceae
|
| ACAU3 | Acrostichum aureum L. | golden leatherfern | Pteridaceae
|
| ACDA | Acrostichum danaeifolium Langsd. & Fisch. | inland leatherfern | Pteridaceae
|
| ACEX2 | Acrostichum excelsum Maxon | Acrostichum danaeifolium | Pteridaceae
|
| ACLO3 | Acrostichum longifolium Jacq., non Burm. | Elaphoglossum longifolium | Dryopteridaceae
|
| ACROS | Acrostichum L. | leatherfern | Pteridaceae
|
| ACAL7 | Actaea alba auct. non (L.) P. Mill. | Actaea pachypoda | Ranunculaceae
|
| ACARV | Actaea arguta Nutt. var. viridiflora (Greene) Tidestrom | Actaea rubra ssp. arguta | Ranunculaceae
|
| ACAR7 | Actaea arguta Nutt. | Actaea rubra ssp. arguta | Ranunculaceae
|
| ACLU | Actaea �ludovici Boivin | | Ranunculaceae
|
| ACPA | Actaea pachypoda Ell. | white baneberry | Ranunculaceae
|
| ACRUA8 | Actaea rubra (Ait.) Willd. ssp. arguta (Nutt.) Hult�n | red baneberry | Ranunculaceae
|
| ACRUR2 | Actaea rubra (Ait.) Willd. ssp. rubra | red baneberry | Ranunculaceae
|
| ACRUA | Actaea rubra (Ait.) Willd. var. arguta (Nutt.) Lawson | Actaea rubra ssp. arguta | Ranunculaceae
|
| ACRU2 | Actaea rubra (Ait.) Willd. | red baneberry | Ranunculaceae
|
| ACSPR3 | Actaea spicata L. ssp. rubra (Ait.) Hult�n | Actaea rubra ssp. rubra | Ranunculaceae
|
| ACSPA | Actaea spicata L. var. arguta (Nutt.) Torr. | Actaea rubra ssp. arguta | Ranunculaceae
|
| ACTAE | Actaea L. | baneberry | Ranunculaceae
|
| ACACA | Actinea acaulis (Pursh) Spreng. var. arizonica (Greene) Blake | Tetraneuris acaulis var. arizonica | Asteraceae
|
| ACAC2 | Actinea acaulis (Pursh) Spreng. | Tetraneuris acaulis var. acaulis | Asteraceae
|
| ACCA13 | Actinea canescens (D.C. Eat.) Blake | Hymenoxys cooperi var. canescens | Asteraceae
|
| ACCO9 | Actinea cooperi (Gray) Kuntze | Hymenoxys cooperi var. cooperi | Asteraceae
|
| ACGR4 | Actinea grandiflora (Torr. & Gray ex Gray) Kuntze | Tetraneuris grandiflora | Asteraceae
|
| ACHE2 | Actinea herbacea (Greene) B.L. Robins. | Tetraneuris herbacea | Asteraceae
|
| ACRI3 | Actinea richardsonii (Hook.) Kuntze | Hymenoxys richardsonii var. richardsonii | Asteraceae
|
| ACVA2 | Actinea vaseyi (Gray) Kuntze | Hymenoxys vaseyi | Asteraceae
|
| ACAC3 | Actinella acaulis (Pursh) Nutt. | Tetraneuris acaulis var. acaulis | Asteraceae
|
| ACAR4 | Actinella argentea Gray | Tetraneuris argentea | Asteraceae
|
| ACRIF | Actinella richardsonii (Hook.) Nutt. var. floribunda Gray | Hymenoxys richardsonii var. floribunda | Asteraceae
|
| ACAR10 | Actinidia arguta (Sieb. & Zucc.) Planch. ex Miq. | tara vine | Actinidiaceae
|
| ACCH5 | Actinidia chinensis Planchon | kiwi | Actinidiaceae
|
| ACPO9 | Actinidia polygama (Siebold & Zucc.) Maxim. | silver vine | Actinidiaceae
|
| ACTIN3 | Actinidia Lindl. | actinidia | Actinidiaceae
|
| ACMU4 | Actinogyra muehlenbergii (Ach.) Schol. | Umbilicaria muehlenbergii | Umbilicariaceae
|
| ACPO8 | Actinogyra polyrrhiza (L.) Schol. | Umbilicaria polyrrhiza | Umbilicariaceae
|
| ACAL12 | Actinomeris alternifolia (L.) DC. | Verbesina alternifolia | Asteraceae
|
| ACHEE | Actinomeris helianthoides (Michx.) Nutt. var. elliottii DC. | Verbesina helianthoides | Asteraceae
|
| ACHEN | Actinomeris helianthoides (Michx.) Nutt. var. nuttallii DC. | Verbesina helianthoides | Asteraceae
|
| ACHE3 | Actinomeris helianthoides (Michx.) Nutt. | Verbesina helianthoides | Asteraceae
|
| ACHE4 | Actinomeris heterophylla Chapman | Verbesina heterophylla | Asteraceae
|
| ACLO4 | Actinomeris longifolia Gray | Verbesina longifolia | Asteraceae
|
| ACNU | Actinomeris nudicaulis Nutt. | Verbesina aristata | Asteraceae
|
| ACOP2 | Actinomeris oppositifolia DC. | Verbesina helianthoides | Asteraceae
|
| ACPA3 | Actinomeris pauciflora Nutt. | Verbesina heterophylla | Asteraceae
|
| ACAN5 | Actinospermum angustifolium (Pursh) Torr. & Gray | Balduina angustifolia | Asteraceae
|
| ACGE2 | Actinostachys germanii F�e | Actinostachys pennula | Schizaeaceae
|
| ACPE2 | Actinostachys pennula (Sw.) Hook. | ray fern | Schizaeaceae
|
| ACTIN | Actinostachys Wallich | actinostachys | Schizaeaceae
|
| ACDE8 | Acuan depressum (Humb. & Bonpl. ex Willd.) Kuntze | Desmanthus virgatus var. depressus | Fabaceae
|
| ACIL2 | Acuan illinoense (Michx.) Kuntze | Desmanthus illinoensis | Fabaceae
|
| ACLE4 | Acuan leptolobum (Torr. & Gray) Kuntze | Desmanthus leptolobus | Fabaceae
|
| ACVI3 | Acuan virgatum (L.) Medik. | Desmanthus virgatus var. virgatus | Fabaceae
|
| ADDI3 | Adansonia digitata L. | baobab | Bombacaceae
|
| ADANS2 | Adansonia L. | adansonia | Bombacaceae
|
| ADBE2 | Adelia bernardia L. | Bernardia dichotoma | Euphorbiaceae
|
| ADRI | Adelia ricinella L. | wild lime | Euphorbiaceae
|
| ADVA | Adelia vaseyi (Coult.) Pax & K. Hoffmann | Vasey's wild lime | Euphorbiaceae
|
| ADELI | Adelia L. | wild lime | Euphorbiaceae
|
| ADAL2 | Adelococcus alpestris (Zopf) Theissen & Sydow | | Verrucariaceae
|
| ADELO2 | Adelococcus Theissen & Sydow | adelococcus | Verrucariaceae
|
| ADKO | Adelolecia kolaensis (Nyl.) Hertel & Rambold | | Bacidiaceae
|
| ADPI2 | Adelolecia pilati (Hepp) Hertel & Hafellner | adelolecia lichen | Bacidiaceae
|
| ADELO | Adelolecia Hertel & Hafellner | adelolecia | Bacidiaceae
|
| ADPA | Adenanthera pavonina L. | red beadtree | Fabaceae
|
| ADENA | Adenanthera L. | beadtree | Fabaceae
|
| ADOB2 | Adenium obesum (Forssk.) Roem. & Schult. | desert-rose | Apocynaceae
|
| ADENI | Adenium Roem. & Schult. | desert rose | Apocynaceae
|
| ADBI | Adenocaulon bicolor Hook. | American trailplant | Asteraceae
|
| ADENO | Adenocaulon Hook. | trailplant | Asteraceae
|
| ADGR | Adenolinum grandiflorum (Desf.) W.A. Weber | Linum grandiflorum | Linaceae
|
| ADLE | Adenolinum lewisii (Pursh) A.& D. L�ve | Linum lewisii var. lewisii | Linaceae
|
| ADPR | Adenolinum pratense (Norton) W.A. Weber | Linum pratense | Linaceae
|
| ADAB2 | Adenophorus �abbottiae W.H. Wagner | | Grammitidaceae
|
| ADAB | Adenophorus abietinus (D.C. Eat.) K.A. Wilson | elegant kihifern | Grammitidaceae
|
| ADCA5 | Adenophorus �carsonii T.A. Ranker | | Grammitidaceae
|
| ADEP | Adenophorus epigaeus (Bishop) W.H. Wagner | Kauai kihifern | Grammitidaceae
|
| ADHA | Adenophorus haalilioanus (Brack.) K.A. Wilson | island kihifern | Grammitidaceae
|
| ADHY | Adenophorus hymenophylloides (Kaulfuss) Hook. & Grev. | filmy kihifern | Grammitidaceae
|
| ADMO3 | Adenophorus montanus (Hbd.) W.H. Wagner | Maui kihifern | Grammitidaceae
|
| ADOA | Adenophorus oahuensis (Copeland) Bishop | Oahu kihifern | Grammitidaceae
|
| ADPE2 | Adenophorus periens Bishop | pendant kihifern | Grammitidaceae
|
| ADPI | Adenophorus pinnatifidus Gaud. | graceful kihifern | Grammitidaceae
|
| ADTAE | Adenophorus tamariscinus (Kaulfuss) Hook. & Grev. var. epigaeus Bishop | Adenophorus epigaeus | Grammitidaceae
|
| ADTAM | Adenophorus tamariscinus (Kaulfuss) Hook. & Grev. var. montanus (Hbd.) Bishop | Adenophorus montanus | Grammitidaceae
|
| ADTA | Adenophorus tamariscinus (Kaulfuss) Hook. & Grev. | wahini noho mauna | Grammitidaceae
|
| ADTR2 | Adenophorus tripinnatifidus Gaud. | royal kihifern | Grammitidaceae
|
| ADENO3 | Adenophorus Gaud. | kihifern | Grammitidaceae
|
| ADCO2 | Adenophyllum cooperi (Gray) Strother | Cooper's dogweed | Asteraceae
|
| ADPO | Adenophyllum porophylloides (Gray) Strother | San Felipe dogweed | Asteraceae
|
| ADPO2 | Adenophyllum porophyllum (Cav.) Hemsl. | poreleaf dogweed | Asteraceae
|
| ADWR | Adenophyllum wrightii Gray | Wright's dogweed | Asteraceae
|
| ADENO5 | Adenophyllum Pers. | dogweed | Asteraceae
|
| ADLI | Adenoplea lindleyana (Fortune ex Lindl.) Small | Buddleja lindleyana | Buddlejaceae
|
| ADEL | Adenoropium elegans Pohl | Jatropha gossypiifolia var. elegans | Euphorbiaceae
|
| ADGO | Adenoropium gossypiifolium (L.) Pohl | Jatropha gossypiifolia var. gossypiifolia | Euphorbiaceae
|
| ADHA2 | Adenoropium hastatum (Jacq.) Britt. & Wilson | Jatropha integerrima var. hastata | Euphorbiaceae
|
| ADMU | Adenoropium multifidum (L.) Pohl | Jatropha multifida | Euphorbiaceae
|
| ADLA2 | Adenostemma lavenia (L.) Kuntze | common medicineplant | Asteraceae
|