| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| AMST6 | Amblystegium stellatum (Hedw.) Lindb. | Campylium stellatum var. stellatum | Amblystegiaceae
|
| AMTES | Amblystegium tenax (Hedw.) C. Jens. var. spinifolium (Schimp.) Crum & Anderson | Hygroamblystegium tenax var. spinifolium | Amblystegiaceae
|
| AMTE8 | Amblystegium tenax (Hedw.) C. Jens. | Hygroamblystegium tenax var. tenax | Amblystegiaceae
|
| AMTRC | Amblystegium trichopodium (Schultz) Hartm. var. curvipes (Schimp. in B.S.G.) Broth. | Leptodictyum humile | Amblystegiaceae
|
| AMTRK | Amblystegium trichopodium (Schultz) Hartm. var. kochii (Schimp. in B.S.G.) Lindb. | Leptodictyum humile | Amblystegiaceae
|
| AMTR4 | Amblystegium trichopodium (Schultz) Hartm. | Leptodictyum humile | Amblystegiaceae
|
| AMVA2 | Amblystegium vacillans Sull. | Leptodictyum riparium | Amblystegiaceae
|
| AMVAA | Amblystegium varium (Hedw.) Lindb. var. alaskanum Card. & Th�r. | Amblystegium varium | Amblystegiaceae
|
| AMVAL | Amblystegium varium (Hedw.) Lindb. var. lancifolium Grout | Amblystegium varium | Amblystegiaceae
|
| AMVAO | Amblystegium varium (Hedw.) Lindb. var. ovatum (Grout) Grout | Amblystegium varium | Amblystegiaceae
|
| AMVAP | Amblystegium varium (Hedw.) Lindb. var. parvulum (Aust.) Grout | Amblystegium varium | Amblystegiaceae
|
| AMVA | Amblystegium varium (Hedw.) Lindb. | amblystegium moss | Amblystegiaceae
|
| AMBLY4 | Amblystegium Schimp. in B.S.G. | amblystegium moss | Amblystegiaceae
|
| AMAM6 | Ambrina ambrosioides (L.) Spach | Chenopodium ambrosioides var. ambrosioides | Chenopodiaceae
|
| AMAC2 | Ambrosia acanthicarpa Hook. | flatspine burr ragweed | Asteraceae
|
| AMAM2 | Ambrosia ambrosioides (Cav.) Payne | ambrosia leaf burr ragweed | Asteraceae
|
| AMAP | Ambrosia aptera DC. | Ambrosia trifida var. texana | Asteraceae
|
| AMARA2 | Ambrosia artemisiifolia L. var. artemisiifolia | annual ragweed | Asteraceae
|
| AMARE | Ambrosia artemisiifolia L. var. elatior (L.) Descourtils | annual ragweed | Asteraceae
|
| AMARP | Ambrosia artemisiifolia L. var. paniculata (Michx.) Blank. | annual ragweed | Asteraceae
|
| AMAR2 | Ambrosia artemisiifolia L. | annual ragweed | Asteraceae
|
| AMBI2 | Ambrosia bidentata Michx. | lanceleaf ragweed | Asteraceae
|
| AMCA10 | Ambrosia californica Rydb. | Ambrosia psilostachya | Asteraceae
|
| AMCA7 | Ambrosia canescens (Benth.) Gray | hairy ragweed | Asteraceae
|
| AMCHB | Ambrosia chamissonis (Less.) Greene var. bipinnatisecta (Less.) J.T. Howell | Ambrosia chamissonis | Asteraceae
|
| AMCH4 | Ambrosia chamissonis (Less.) Greene | silver burr ragweed | Asteraceae
|
| AMCH2 | Ambrosia cheiranthifolia Gray | Rio Grande ragweed | Asteraceae
|
| AMCH5 | Ambrosia chenopodiifolia (Benth.) Payne | San Diego burr ragweed | Asteraceae
|
| AMCO3 | Ambrosia confertiflora DC. | weakleaf burr ragweed | Asteraceae
|
| AMCO4 | Ambrosia cordifolia (Gray) Payne | Tucson burr ragweed | Asteraceae
|
| AMCO5 | Ambrosia coronopifolia Torr. & Gray | Ambrosia psilostachya | Asteraceae
|
| AMCU2 | Ambrosia cumanensis auct. non Kunth | Ambrosia psilostachya | Asteraceae
|
| AMDE4 | Ambrosia deltoidea (Torr.) Payne | triangle burr ragweed | Asteraceae
|
| AMDU2 | Ambrosia dumosa (Gray) Payne | burrobush | Asteraceae
|
| AMEL2 | Ambrosia elatior L. | Ambrosia artemisiifolia var. elatior | Asteraceae
|
| AMER | Ambrosia eriocentra (Gray) Payne | woolly fruit burr ragweed | Asteraceae
|
| AMGL5 | Ambrosia glandulosa Scheele | Ambrosia artemisiifolia var. paniculata | Asteraceae
|
| AMGR5 | Ambrosia grayi (A. Nels.) Shinners | woollyleaf burr ragweed | Asteraceae
|
| AMHE3 | Ambrosia �helenae Rouleau | | Asteraceae
|
| AMHI3 | Ambrosia hispida Pursh | coastal ragweed | Asteraceae
|
| AMIL2 | Ambrosia ilicifolia (Gray) Payne | hollyleaf burr ragweed | Asteraceae
|
| AMIN | Ambrosia �intergradiens Wagner | | Asteraceae
|
| AMLI3 | Ambrosia linearis (Rydb.) Payne | streaked burr ragweed | Asteraceae
|
| AMMO2 | Ambrosia monophylla (Walt.) Rydb. | Ambrosia artemisiifolia var. paniculata | Asteraceae
|
| AMPA8 | Ambrosia paniculata Michx. | Ambrosia artemisiifolia var. paniculata | Asteraceae
|
| AMPE2 | Ambrosia peruviana Willd. | Peruvian ragweed | Asteraceae
|
| AMPSC | Ambrosia psilostachya DC. var. californica (Rydb.) Blake | Ambrosia psilostachya | Asteraceae
|
| AMPSC2 | Ambrosia psilostachya DC. var. coronopifolia (Torr. & Gray) Farw. | Ambrosia psilostachya | Asteraceae
|
| AMPSL | Ambrosia psilostachya DC. var. lindheimeriana (Scheele) Blank. | Ambrosia psilostachya | Asteraceae
|
| AMPS | Ambrosia psilostachya DC. | Cuman ragweed | Asteraceae
|
| AMPU4 | Ambrosia pumila (Nutt.) Gray | dwarf burr ragweed | Asteraceae
|
| AMRU2 | Ambrosia rugelii Rydb. | Ambrosia psilostachya | Asteraceae
|
| AMSA6 | Ambrosia sandersonii Welsh | Hymenoclea sandersonii | Asteraceae
|
| AMTE5 | Ambrosia tenuifolia Spreng. | slimleaf burr ragweed | Asteraceae
|
| AMTO3 | Ambrosia tomentosa Nutt. | skeletonleaf burr ragweed | Asteraceae
|
| AMTRA | Ambrosia trifida L. var. aptera (DC.) Kuntze | Ambrosia trifida var. texana | Asteraceae
|
| AMTRI | Ambrosia trifida L. var. integrifolia (Muhl. ex Willd.) Torr. & Gray | Ambrosia trifida var. trifida | Asteraceae
|
| AMTRT | Ambrosia trifida L. var. texana Scheele | Texan great ragweed | Asteraceae
|
| AMTRT2 | Ambrosia trifida L. var. trifida | great ragweed | Asteraceae
|
| AMTR | Ambrosia trifida L. | great ragweed | Asteraceae
|
| AMBRO | Ambrosia L. | ragweed | Asteraceae
|
| AMAL7 | Amelanchier alabamensis Britt. | Amelanchier arborea var. alabamensis | Rosaceae
|
| AMALF | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer ssp. florida (Lindl.) Hult�n | Amelanchier alnifolia var. semiintegrifolia | Rosaceae
|
| AMALA | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. alnifolia | Saskatoon serviceberry | Rosaceae
|
| AMALC | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. cusickii (Fern.) C.L. Hitchc. | Cusick's serviceberry | Rosaceae
|
| AMALH | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. humptulipensis (G.N. Jones) C.L. Hitchc. | Saskatoon serviceberry | Rosaceae
|
| AMALO | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. oreophila (A. Nels.) R.J. Davis | Amelanchier utahensis var. utahensis | Rosaceae
|
| AMALP | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. pallida (Greene) Jepson | Amelanchier pallida | Rosaceae
|
| AMALP2 | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. pumila (Torr. & Gray) Schneid. | Amelanchier pumila | Rosaceae
|
| AMALS | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. semiintegrifolia (Hook.) C.L. Hitchc. | Saskatoon serviceberry | Rosaceae
|
| AMALU | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer var. utahensis (Koehne) M.E. Jones | Amelanchier utahensis var. utahensis | Rosaceae
|
| AMAL2 | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer | Saskatoon serviceberry | Rosaceae
|
| AMAM4 | Amelanchier amabilis Wieg. | Amelanchier sanguinea var. sanguinea | Rosaceae
|
| AMARL | Amelanchier arborea (Michx. f.) Fern. ssp. laevis (Wieg.) S. McKay ex Landry | Amelanchier laevis | Rosaceae
|
| AMARA3 | Amelanchier arborea (Michx. f.) Fern. var. alabamensis (Britt.) G.N. Jones | Alabama serviceberry | Rosaceae
|
| AMARA4 | Amelanchier arborea (Michx. f.) Fern. var. arborea | common serviceberry | Rosaceae
|
| AMARA5 | Amelanchier arborea (Michx. f.) Fern. var. austromontana (Ashe) Ahles | downy serviceberry | Rosaceae
|
| AMARC | Amelanchier arborea (Michx. f.) Fern. var. cordifolia (Ashe) Boivin | Amelanchier laevis | Rosaceae
|
| AMARL2 | Amelanchier arborea (Michx. f.) Fern. var. laevis (Wieg.) Ahles | Amelanchier laevis | Rosaceae
|
| AMAR3 | Amelanchier arborea (Michx. f.) Fern. | common serviceberry | Rosaceae
|
| AMAU3 | Amelanchier australis Standl. | Amelanchier utahensis var. utahensis | Rosaceae
|
| AMBA5 | Amelanchier bakeri Greene | Amelanchier utahensis var. utahensis | Rosaceae
|
| AMBA | Amelanchier bartramiana (Tausch) M. Roemer | oblongfruit serviceberry | Rosaceae
|
| AMBA4 | Amelanchier basalticola Piper | Amelanchier pumila | Rosaceae
|
| AMCAS | Amelanchier canadensis (L.) Medik. var. subintegra Fern. | Amelanchier canadensis | Rosaceae
|
| AMCA4 | Amelanchier canadensis (L.) Medik. | Canadian serviceberry | Rosaceae
|
| AMCO9 | Amelanchier covillei Standl. | Amelanchier utahensis var. covillei | Rosaceae
|
| AMCU3 | Amelanchier cuneata Piper | Amelanchier pumila | Rosaceae
|
| AMCU | Amelanchier cusickii Fern. | Amelanchier alnifolia var. cusickii | Rosaceae
|
| AMDE2 | Amelanchier denticulata (Kunth) W.D.J. Koch | Malacomeles denticulata | Rosaceae
|
| AMFLC | Amelanchier florida Lindl. var. cusickii (Fern.) M.E. Peck | Amelanchier alnifolia var. cusickii | Rosaceae
|
| AMFLG | Amelanchier florida Lindl. var. gracilis (Heller) M.E. Peck | Amelanchier pallida | Rosaceae
|
| AMFLH | Amelanchier florida Lindl. var. humptulipensis G.N. Jones | Amelanchier alnifolia var. humptulipensis | Rosaceae
|
| AMFL | Amelanchier florida Lindl. | Amelanchier alnifolia var. semiintegrifolia | Rosaceae
|
| AMGA2 | Amelanchier gaspensis (Wieg.) Fern. & Weatherby | Amelanchier sanguinea var. gaspensis | Rosaceae
|
| AMGL4 | Amelanchier glabra Greene | Amelanchier pumila | Rosaceae
|
| AMGO2 | Amelanchier goldmanii Woot. & Standl. | Amelanchier utahensis var. utahensis | Rosaceae
|
| AMGR7 | Amelanchier gracilis Heller | Amelanchier pallida | Rosaceae
|
| AMGR6 | Amelanchier �grandiflora Rehd. | Amelanchier laevis | Rosaceae
|
| AMGR11 | Amelanchier grandiflora Wieg. | Amelanchier sanguinea var. grandiflora | Rosaceae
|
| AMHUC | Amelanchier humilis Wieg. var. campestris Nielsen | Amelanchier humilis | Rosaceae
|