| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| ARDIT | Arabis divaricarpa A. Nels. var. typica Rollins | Arabis divaricarpa | Brassicaceae
|
| ARDI2 | Arabis �divaricarpa A. Nels. (pro sp.) | spreadingpod rockcress | Brassicaceae
|
| ARDR8 | Arabis drepanoloba Greene | Arabis lemmonii var. drepanoloba | Brassicaceae
|
| ARDRC | Arabis drummondii Gray var. connexa (Greene) Fern. | Arabis drummondii | Brassicaceae
|
| ARDRO | Arabis drummondii Gray var. oxyphylla (Greene) M. Hopkins | Arabis drummondii | Brassicaceae
|
| ARDR | Arabis drummondii Gray | Drummond's rockcress | Brassicaceae
|
| ARDU3 | Arabis duriuscula Greene | Arabis suffrutescens var. suffrutescens | Brassicaceae
|
| AREL5 | Arabis elegans A. Nels. | Arabis sparsiflora var. subvillosa | Brassicaceae
|
| ARER2 | Arabis eremophila Greene | Arabis perennans | Brassicaceae
|
| ARES5 | Arabis eschscholtziana Andrz. | Eschscholtz's hairy rockcress | Brassicaceae
|
| AREX | Arabis exilis A. Nels. | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARFA2 | Arabis falcatoria Rollins | Grouse Creek rockcress | Brassicaceae
|
| ARFA3 | Arabis falcifructa Rollins | Elko rockcress | Brassicaceae
|
| ARFE6 | Arabis fecunda Rollins | Mt. Sapphire rockcress | Brassicaceae
|
| ARFEF | Arabis fendleri (S. Wats.) Greene var. fendleri | Fendler's rockcress | Brassicaceae
|
| ARFES | Arabis fendleri (S. Wats.) Greene var. spatifolia (Rydb.) Rollins | spoonleaf rockcress | Brassicaceae
|
| ARFE | Arabis fendleri (S. Wats.) Greene | Fendler's rockcress | Brassicaceae
|
| ARFEF2 | Arabis fernaldiana Rollins var. fernaldiana | park rockcress | Brassicaceae
|
| ARFES2 | Arabis fernaldiana Rollins var. stylosa (S. Wats.) Rollins | park rockcress | Brassicaceae
|
| ARFET2 | Arabis fernaldiana Rollins var. typica Rollins | Arabis fernaldiana var. fernaldiana | Brassicaceae
|
| ARFE2 | Arabis fernaldiana Rollins | park rockcress | Brassicaceae
|
| ARFI3 | Arabis filifolia Greene | Sibara filifolia | Brassicaceae
|
| ARFO5 | Arabis formosa Greene | Arabis pulchra var. pallens | Brassicaceae
|
| ARFR5 | Arabis fructicosa A. Nels. | fruit rockcress | Brassicaceae
|
| ARFUF2 | Arabis furcata S. Wats. var. furcata | Columbia Gorge rockcress | Brassicaceae
|
| ARFUO | Arabis furcata S. Wats. var. olympica (Piper) Rollins | Columbia Gorge rockcress | Brassicaceae
|
| ARFU | Arabis furcata S. Wats. | Columbia Gorge rockcress | Brassicaceae
|
| ARGE | Arabis georgiana Harper | Georgia rockcress | Brassicaceae
|
| ARGLF | Arabis glabra (L.) Bernh. var. furcatipilis M. Hopkins | Arabis glabra | Brassicaceae
|
| ARGL | Arabis glabra (L.) Bernh. | tower rockcress | Brassicaceae
|
| ARGL2 | Arabis glaucovalvula M.E. Jones | bluepod rockcress | Brassicaceae
|
| ARGR7 | Arabis gracilenta Greene | Arabis perennans | Brassicaceae
|
| ARGR4 | Arabis gracilipes Greene | Flagstaff rockcress | Brassicaceae
|
| ARGU | Arabis gunnisoniana Rollins | Gunnison's rockcress | Brassicaceae
|
| ARHA2 | Arabis hastatula Greene | eared rockcress | Brassicaceae
|
| ARHE7 | Arabis heterophylla Nutt. | Arabis laevigata var. laevigata | Brassicaceae
|
| ARHIE2 | Arabis hirsuta (L.) Scop. ssp. eschscholtziana (Andrz.) Hult�n | Arabis eschscholtziana | Brassicaceae
|
| ARHIP2 | Arabis hirsuta (L.) Scop. ssp. pycnocarpa (M. Hopkins) Hult�n | Arabis hirsuta var. pycnocarpa | Brassicaceae
|
| ARHIA | Arabis hirsuta (L.) Scop. var. adpressipilis (M. Hopkins) Rollins | Arabis hirsuta var. pycnocarpa | Brassicaceae
|
| ARHIE | Arabis hirsuta (L.) Scop. var. eschscholtziana (Andrz.) Rollins | Arabis eschscholtziana | Brassicaceae
|
| ARHIG | Arabis hirsuta (L.) Scop. var. glabrata Torr. & Gray | mountain rockcress | Brassicaceae
|
| ARHIH | Arabis hirsuta (L.) Scop. var. hirsuta | hairy rockcress | Brassicaceae
|
| ARHIP | Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins | creamflower rockcress | Brassicaceae
|
| ARHI | Arabis hirsuta (L.) Scop. | hairy rockcress | Brassicaceae
|
| ARHO | Arabis hoffmannii (Munz) Rollins | Hoffmann's rockcress | Brassicaceae
|
| ARHOA | Arabis holboellii Hornem. var. arcuata (Nutt.) Jepson | Arabis sparsiflora var. arcuata | Brassicaceae
|
| ARHOC | Arabis holboellii Hornem. var. collinsii (Fern.) Rollins | Collins' rockcress | Brassicaceae
|
| ARHOC2 | Arabis holboellii Hornem. var. consanguinea (Greene) G. Mulligan | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARHOF2 | Arabis holboellii Hornem. var. fendleri S. Wats. | Arabis fendleri var. fendleri | Brassicaceae
|
| ARHOP2 | Arabis holboellii Hornem. var. pendulocarpa (A. Nels.) Rollins | dropseed rockcress | Brassicaceae
|
| ARHOP3 | Arabis holboellii Hornem. var. pinetorum (Tidestrom) Rollins | Holboell's rockcress | Brassicaceae
|
| ARHOR | Arabis holboellii Hornem. var. retrofracta (Graham) Rydb. | second rockcress | Brassicaceae
|
| ARHOS | Arabis holboellii Hornem. var. secunda (T.J. Howell) Jepson | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARHOT | Arabis holboellii Hornem. var. tenuis B�cher | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARHO2 | Arabis holboellii Hornem. | Holboell's rockcress | Brassicaceae
|
| ARHO10 | Arabis hookeri Lange | Halimolobos mollis | Brassicaceae
|
| ARHO8 | Arabis howellii S. Wats. | Arabis platysperma var. howellii | Brassicaceae
|
| ARINA | Arabis inamoena Greene var. acutata Jepson | Arabis platysperma var. howellii | Brassicaceae
|
| ARIN10 | Arabis inamoena Greene | Arabis platysperma var. platysperma | Brassicaceae
|
| ARIN9 | Arabis interposita Greene | Arabis divaricarpa | Brassicaceae
|
| ARIN | Arabis inyoensis Rollins | Inyo rockcress | Brassicaceae
|
| ARJO | Arabis johnstonii Munz | Johnston's rockcress | Brassicaceae
|
| ARKA6 | Arabis kamchatica (Fisch. ex DC.) Ledeb. | Kamchatica rockcress | Brassicaceae
|
| ARKO2 | Arabis kochii Blank. | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARKOK | Arabis koehleri T.J. Howell var. koehleri | Koehler's rockcress | Brassicaceae
|
| ARKOS | Arabis koehleri T.J. Howell var. stipitata Rollins | Koehler's rockcress | Brassicaceae
|
| ARKO | Arabis koehleri T.J. Howell | Koehler's rockcress | Brassicaceae
|
| ARLAB | Arabis laevigata (Muhl. ex Willd.) Poir. var. burkii Porter | Burk's smooth rockcress | Brassicaceae
|
| ARLAL | Arabis laevigata (Muhl. ex Willd.) Poir. var. laevigata | smooth rockcress | Brassicaceae
|
| ARLAM2 | Arabis laevigata (Muhl. ex Willd.) Poir. var. missouriensis (Greene) Ahles | Arabis missouriensis | Brassicaceae
|
| ARLA | Arabis laevigata (Muhl. ex Willd.) Poir. | smooth rockcress | Brassicaceae
|
| ARLA10 | Arabis lasiocarpa Rollins | Wasatch rockcress | Brassicaceae
|
| ARLE5 | Arabis leibergii Greene | Arabis platysperma var. howellii | Brassicaceae
|
| ARLED | Arabis lemmonii S. Wats. var. depauperata (A. Nels. & Kennedy) Rollins | soldier rockcress | Brassicaceae
|
| ARLED2 | Arabis lemmonii S. Wats. var. drepanoloba (Greene) Rollins | soldier rockcress | Brassicaceae
|
| ARLEL | Arabis lemmonii S. Wats. var. lemmonii | Lemmon's rockcress | Brassicaceae
|
| ARLEP | Arabis lemmonii S. Wats. var. paddoensis Rollins | Paddo rockcress | Brassicaceae
|
| ARLET | Arabis lemmonii S. Wats. var. typica Rollins | Arabis lemmonii var. lemmonii | Brassicaceae
|
| ARLE | Arabis lemmonii S. Wats. | Lemmon's rockcress | Brassicaceae
|
| ARLI | Arabis lignifera A. Nels. | desert rockcress | Brassicaceae
|
| ARLI6 | Arabis lignipes A. Nels. | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARLYL | Arabis lyallii S. Wats. var. lyallii | Lyall's rockcress | Brassicaceae
|
| ARLYN | Arabis lyallii S. Wats. var. nubigena (J.F. Macbr. & Payson) Rollins | Lyall's rockcress | Brassicaceae
|
| ARLY | Arabis lyallii S. Wats. | Lyall's rockcress | Brassicaceae
|
| ARLYK2 | Arabis lyrata L. ssp. kamchatica (Fisch. ex DC.) Hult�n | Arabis kamchatica | Brassicaceae
|
| ARLYG | Arabis lyrata L. var. glabra (DC.) M. Hopkins | Arabis lyrata | Brassicaceae
|
| ARLYK | Arabis lyrata L. var. kamchatica Fisch. ex DC. | Arabis kamchatica | Brassicaceae
|
| ARLY2 | Arabis lyrata L. | lyrate rockcress | Brassicaceae
|
| ARLY3 | Arabis lyrifolia DC. | Arabis laevigata var. laevigata | Brassicaceae
|
| ARMA33 | Arabis macdonaldiana Eastw. | MacDonald rockcress | Brassicaceae
|
| ARMA19 | Arabis macella Piper | Arabis nuttallii | Brassicaceae
|
| ARMA21 | Arabis macounii S. Wats. | Arabis microphylla var. macounii | Brassicaceae
|
| ARMAH | Arabis maxima Greene var. hoffmannii Munz | Arabis hoffmannii | Brassicaceae
|
| ARMA11 | Arabis maxima Greene | Arabis sparsiflora var. arcuata | Brassicaceae
|
| ARMC2 | Arabis mcdougalii Rydb. | Arabis holboellii var. retrofracta | Brassicaceae
|
| ARME13 | Arabis media N. Busch | sand-dune rockcress | Brassicaceae
|
| ARMIM | Arabis microphylla Nutt. var. macounii (S. Wats.) Rollins | Macoun's rockcress | Brassicaceae
|
| ARMIM2 | Arabis microphylla Nutt. var. microphylla | littleleaf rockcress | Brassicaceae
|
| ARMIS | Arabis microphylla Nutt. var. saximontana Rollins | Arabis williamsii var. saximontana | Brassicaceae
|
| ARMIT | Arabis microphylla Nutt. var. thompsonii Rollins | Thompson's rockcress | Brassicaceae
|
| ARMI | Arabis microphylla Nutt. | littleleaf rockcress | Brassicaceae
|