| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| BATE2 | Bartonia texana Correll | Texas screwstem | Gentianaceae
|
| BAVE2 | Bartonia verna (Michx.) Raf. ex Bart. | white screwstem | Gentianaceae
|
| BAVIP | Bartonia virginica (L.) B.S.P. var. paniculata (Michx.) Boivin | Bartonia paniculata ssp. paniculata | Gentianaceae
|
| BAVIS | Bartonia virginica (L.) B.S.P. var. sabulonensis (Fern.) Boivin | Bartonia paniculata ssp. iodandra | Gentianaceae
|
| BAVI3 | Bartonia virginica (L.) B.S.P. | yellow screwstem | Gentianaceae
|
| BARTO | Bartonia Muhl. ex Willd. | screwstem | Gentianaceae
|
| BABR5 | Bartramia breviseta Lindb. | Bartramia ithyphylla | Bartramiaceae
|
| BACI5 | Bartramia circinnulata C. M�ll. & Kindb. in Mac. & Kindb. | Bartramia pomiformis | Bartramiaceae
|
| BACR4 | Bartramia crispa Brid. | Bartramia pomiformis | Bartramiaceae
|
| BAGL5 | Bartramia glauca Lor. | bartramia moss | Bartramiaceae
|
| BAGL6 | Bartramia glauco-viridis C. M�ll & Kindb. in Mac. & Kindb. | Bartramia pomiformis | Bartramiaceae
|
| BAHA4 | Bartramia halleriana Hedw. | Haller's bartramia moss | Bartramiaceae
|
| BAITB | Bartramia ithyphylla Brid. var. breviseta (Lindb.) Kindb. | Bartramia ithyphylla | Bartramiaceae
|
| BAITF | Bartramia ithyphylla Brid. var. fragilifolia Card. & Th�r. | Bartramia ithyphylla | Bartramiaceae
|
| BAITS | Bartramia ithyphylla Brid. var. strigosa (Wahlenb.) Hartm. | Bartramia ithyphylla | Bartramiaceae
|
| BAIT70 | Bartramia ithyphylla Brid. | bartramia moss | Bartramiaceae
|
| BAMI8 | Bartramia microstoma Mitt. | bartramia moss | Bartramiaceae
|
| BAOE | Bartramia oederi Brid. | Plagiopus oederiana | Bartramiaceae
|
| BAPOC | Bartramia pomiformis Hedw. var. crispa (Brid.) Bruch & Schimp. in B.S.G. | Bartramia pomiformis | Bartramiaceae
|
| BAPOE | Bartramia pomiformis Hedw. var. elongata Turn. | Bartramia pomiformis | Bartramiaceae
|
| BAPO70 | Bartramia pomiformis Hedw. | bartramia moss | Bartramiaceae
|
| BAST6 | Bartramia stricta Brid. | bartramia moss | Bartramiaceae
|
| BASU6 | Bartramia subulata Bruch & Schimp. in B.S.G. | bartramia moss | Bartramiaceae
|
| BAVI8 | Bartramia viridissima (Brid.) Kindb. | Bartramia subulata | Bartramiaceae
|
| BARTR2 | Bartramia Hedw. | bartramia moss | Bartramiaceae
|
| BACA14 | Bartramidula carolinae Sharp in Grout | Bartramidula wilsonii | Bartramiaceae
|
| BACE2 | Bartramidula cernua Lindb. | Bartramidula wilsonii | Bartramiaceae
|
| BAWI | Bartramidula wilsonii Bruch & Schimp. in B.S.G. | Wilson's bartramidula moss | Bartramiaceae
|
| BARTR4 | Bartramidula Bruch & Schimp. in B.S.G. | bartramidula moss | Bartramiaceae
|
| BALE6 | Bartramiopsis lescurii (James) Kindb. | Lescur's bartramiopsis moss | Polytrichaceae
|
| BARTR3 | Bartramiopsis Kindb. | bartramiopsis moss | Polytrichaceae
|
| BATR | Bartsia trixago L. | Bellardia trixago | Scrophulariaceae
|
| BAAL2 | Basella alba L. | Ceylon spinach | Basellaceae
|
| BARU | Basella rubra L. | Basella alba | Basellaceae
|
| BAVE3 | Basella vesicaria Lam. | Anredera vesicaria | Basellaceae
|
| BASEL | Basella L. | basella | Basellaceae
|
| BAAN2 | Basiphyllaea angustifolia Schlechter | Basiphyllaea corallicola | Orchidaceae
|
| BACO2 | Basiphyllaea corallicola (Small) Ames | Carter's orchid | Orchidaceae
|
| BASIP | Basiphyllaea Schlechter | basiphyllaea | Orchidaceae
|
| BAAN4 | Basistelma angustifolia (Torr.) Bartlett, non Cynanchum angustifolium Pers. | Cynanchum wigginsii | Asclepiadaceae
|
| BABU3 | Bassia butyracea Roxb. | Aesandra butyracea | Sapotaceae
|
| BAHI3 | Bassia hirsuta (L.) Aschers. | hairy smotherweed | Chenopodiaceae
|
| BAHY | Bassia hyssopifolia (Pallas) Kuntz | fivehorn smotherweed | Chenopodiaceae
|
| BALA6 | Bassia latifolia Roxb. | Madhuca indica | Sapotaceae
|
| BALO5 | Bassia longifolia J. Konig | Madhuca longifolia | Sapotaceae
|
| BASC5 | Bassia scoparia (L.) A.J. Scott | Kochia scoparia | Chenopodiaceae
|
| BASI4 | Bassia sieversiana (Pallas) W.A. Weber | Kochia scoparia | Chenopodiaceae
|
| BASSI | Bassia All. | smotherweed | Chenopodiaceae
|
| BABI5 | Bastardia bivalvis (Cav.) Kunth | escoba babosa | Malvaceae
|
| BAVIS2 | Bastardia viscosa (L.) Kunth var. sanctae-crucis R.E. Fries | viscid mallow | Malvaceae
|
| BAVIV | Bastardia viscosa (L.) Kunth var. viscosa | viscid mallow | Malvaceae
|
| BAVI4 | Bastardia viscosa (L.) Kunth | viscid mallow | Malvaceae
|
| BASTA | Bastardia Kunth | bastardia | Malvaceae
|
| BAHI6 | Bataprine hispidula (Michx.) Nieuwl. | Galium hispidulum | Rubiaceae
|
| BAUN3 | Bataprine uniflora (Michx.) Nieuwl. | Galium uniflorum | Rubiaceae
|
| BAVI5 | Batesimalva violacea (Rose) Fryxell | purple gaymallow | Malvaceae
|
| BATES | Batesimalva Fryxell | gaymallow | Malvaceae
|
| BACA18 | Bathelium carolinianum (Tuck.) R. C. Harris | | Trypetheliaceae
|
| BAMA14 | Bathelium madreporiforme (Eschw.) Trevisan | | Trypetheliaceae
|
| BATHE | Bathelium Ach. | bathelium | Trypetheliaceae
|
| BALO | Batidophaca lotiflorus (Hook.) Rydb. | Astragalus lotiflorus | Fabaceae
|
| BAMA5 | Batis maritima L. | turtleweed | Bataceae
|
| BATIS | Batis P. Br. | turtleweed | Bataceae
|
| BAUN4 | Batocydia unguis-cati (L.) Mart. ex Britt. | Macfadyena unguis-cati | Bignoniaceae
|
| BAAN5 | Batodendron andrachniforme Small | Vaccinium arboreum | Ericaceae
|
| BAAR2 | Batodendron arboreum (Marsh.) Nutt. | Vaccinium arboreum | Ericaceae
|
| BAAQ | Batrachium aquatile (L.) Dumort. | Ranunculus aquatilis | Ranunculaceae
|
| BACIS | Batrachium circinatum (Sibthorp) Reichenb. ssp. subrigidum (W. Drew) A.& D. L�ve | Ranunculus longirostris | Ranunculaceae
|
| BACO5 | Batrachium confervoides Fries | Ranunculus trichophyllus var. eradicatus | Ranunculaceae
|
| BAFL2 | Batrachium flaccidum (Pers.) Rupr. | Ranunculus trichophyllus var. trichophyllus | Ranunculaceae
|
| BAHE | Batrachium hederaceum (L.) S.F. Gray | Ranunculus hederaceus | Ranunculaceae
|
| BALO2 | Batrachium longirostre (Godr.) F.W. Schultz | Ranunculus longirostris | Ranunculaceae
|
| BAPO3 | Batrachium porteri (Britt.) Britt. | Ranunculus trichophyllus var. trichophyllus | Ranunculaceae
|
| BATR2 | Batrachium trichophyllum (Chaix) F.W. Schultz | Ranunculus trichophyllus var. trichophyllus | Ranunculaceae
|
| BACA7 | Batschia canescens Michx. | Lithospermum canescens | Boraginaceae
|
| BACA5 | Batschia caroliniensis Walt. ex J.F. Gmel. | Lithospermum caroliniense var. caroliniense | Boraginaceae
|
| BALI | Batschia linearifolia (Goldie) Small | Lithospermum incisum | Boraginaceae
|
| BABL | Bauhinia �blakeana S.T. Dunn | | Fabaceae
|
| BACO | Bauhinia congesta (Britt. & Rose) Lundell | Bauhinia lunarioides | Fabaceae
|
| BAES | Bauhinia esculenta Burchell | camel's foot | Fabaceae
|
| BAFA | Bauhinia fassoglensis Kotschy ex Schweinf. | bauhinia | Fabaceae
|
| BAGA | Bauhinia galpinii N.E. Br. | African plume | Fabaceae
|
| BAJE | Bauhinia jermyana (Britt.) Lundell | Bauhinia lunarioides | Fabaceae
|
| BALU | Bauhinia lunarioides Gray ex S. Wats. | Texasplume | Fabaceae
|
| BAME2 | Bauhinia megalandra Griseb. | Bauhinia multinervia | Fabaceae
|
| BAMO2 | Bauhinia monandra Kurz | Napoleon's plume | Fabaceae
|
| BAMU3 | Bauhinia multinervia (Kunth) DC. | petite flamboyant bauhinia | Fabaceae
|
| BAPA3 | Bauhinia pauletia Pers. | railroadfence | Fabaceae
|
| BAPU80 | Bauhinia punctata Bolle, non Jacq. | Bauhinia galpinii | Fabaceae
|
| BAPU | Bauhinia purpurea L. | butterfly tree | Fabaceae
|
| BATO | Bauhinia tomentosa L. | St. Thomas tree | Fabaceae
|
| BAVA | Bauhinia variegata L. | mountain ebony | Fabaceae
|
| BAYU | Bauhinia yunnanensis Franch. | Yunnan bauhinia | Fabaceae
|
| BAUHI | Bauhinia L. | bauhinia | Fabaceae
|
| BAAM2 | Bazzania ambigua (Lindenb.) Trevis. | | Lepidoziaceae
|
| BADE6 | Bazzania denudata (Torr. ex Gottsche & Lindenb. & Nees) Trevis. | | Lepidoziaceae
|
| BANU3 | Bazzania nudicaulis A. Evans | | Lepidoziaceae
|
| BAPE5 | Bazzania pearsonii Steph. | | Lepidoziaceae
|
| BATR4 | Bazzania tricrenata (Wahlenb.) Lindb. | | Lepidoziaceae
|
| BATRD | Bazzania trilobata (L.) Gray var. depauperata (M�ll. Frib.) Grolle | | Lepidoziaceae
|
| BATRT | Bazzania trilobata (L.) Gray var. trilobata | | Lepidoziaceae
|