| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| BRBRT | Brickellia brachyphylla (Gray) Gray var. terlinguensis Flyr | Terlingu brickellia | Asteraceae
|
| BRBR2 | Brickellia brachyphylla (Gray) Gray | plumed brickellbush | Asteraceae
|
| BRCAC | Brickellia californica (Torr. & Gray) Gray var. californica | California brickellbush | Asteraceae
|
| BRCAD | Brickellia californica (Torr. & Gray) Gray var. desertorum (Coville) Parish ex Hall | Brickellia desertorum | Asteraceae
|
| BRCAJ | Brickellia californica (Torr. & Gray) Gray var. jepsonii B.L. Robins. | Jepson's brickellbush | Asteraceae
|
| BRCA3 | Brickellia californica (Torr. & Gray) Gray | California brickellbush | Asteraceae
|
| BRCH | Brickellia chenopodina (Greene) B.L. Robins. | chenopod brickellbush | Asteraceae
|
| BRCH2 | Brickellia chlorolepis (Woot. & Standl.) Shinners | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| BRCO7 | Brickellia conduplicata (B.L. Robins.) B.L. Robins. | southwestern brickellbush | Asteraceae
|
| BRCO8 | Brickellia cordifolia Ell. | Flyr's nemesis | Asteraceae
|
| BRCO | Brickellia coulteri Gray | Coulter's brickellbush | Asteraceae
|
| BRCY | Brickellia cylindracea Gray & Engelm. | gravelbar brickellbush | Asteraceae
|
| BRDE2 | Brickellia dentata (DC.) Schultz-Bip. | leafy brickellbush | Asteraceae
|
| BRDE3 | Brickellia desertorum Coville | desert brickellbush | Asteraceae
|
| BREUC2 | Brickellia eupatorioides (L.) Shinners var. chlorolepis (Woot. & Standl.) B.L. Turner | false boneset | Asteraceae
|
| BREUC | Brickellia eupatorioides (L.) Shinners var. corymbulosa (Torr. & Gray) Shinners | false boneset | Asteraceae
|
| BREUE | Brickellia eupatorioides (L.) Shinners var. eupatorioides | false boneset | Asteraceae
|
| BREUF | Brickellia eupatorioides (L.) Shinners var. floridana (R.W. Long) B.L. Turner | false boneset | Asteraceae
|
| BREUG | Brickellia eupatorioides (L.) Shinners var. gracillima (Gray) B.L. Turner | false boneset | Asteraceae
|
| BREUO | Brickellia eupatorioides (L.) Shinners var. ozarkana (Shinners) Shinners | Brickellia eupatorioides var. texana | Asteraceae
|
| BREUT | Brickellia eupatorioides (L.) Shinners var. texana (Shinners) Shinners | false boneset | Asteraceae
|
| BREU | Brickellia eupatorioides (L.) Shinners | false boneset | Asteraceae
|
| BRFE | Brickellia fendleri Gray | Brickelliastrum fendleri | Asteraceae
|
| BRFL | Brickellia floribunda Gray | Chihuahuan brickellbush | Asteraceae
|
| BRFR | Brickellia frutescens Gray | shrubby brickellbush | Asteraceae
|
| BRGRP | Brickellia grandiflora (Hook.) Nutt. var. petiolaris Gray | Brickellia grandiflora | Asteraceae
|
| BRGR | Brickellia grandiflora (Hook.) Nutt. | tasselflower brickellbush | Asteraceae
|
| BRGR2 | Brickellia greenei Gray | Greene brickellbush | Asteraceae
|
| BRHI4 | Brickellia hinckleyi Standl. | Brickellia brachyphylla var. hinckleyi | Asteraceae
|
| BRIN | Brickellia incana Gray | woolly brickellbush | Asteraceae
|
| BRKN | Brickellia knappiana E. Drew | Knapp brickellbush | Asteraceae
|
| BRLA | Brickellia laciniata Gray | splitleaf brickellbush | Asteraceae
|
| BRLEL | Brickellia lemmonii Gray var. lemmonii | Lemmon's brickellbush | Asteraceae
|
| BRLEN | Brickellia lemmonii Gray var. nelsonii (B.L. Robins.) B.L. Turner | Brickellia lemmonii var. wootonii | Asteraceae
|
| BRLEW | Brickellia lemmonii Gray var. wootonii (Greene) B.L. Robins. | Lemmon's brickellbush | Asteraceae
|
| BRLE | Brickellia lemmonii Gray | Lemmon's brickellbush | Asteraceae
|
| BRLEM | Brickellia leptophylla (Scheele) Shinners var. mexicana (Shinners) Shinners | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| BRLE4 | Brickellia leptophylla (Scheele) Shinners | Brickellia eupatorioides var. gracillima | Asteraceae
|
| BRLI2 | Brickellia linifolia D.C. Eat. | Brickellia oblongifolia var. linifolia | Asteraceae
|
| BRLOL3 | Brickellia longifolia S. Wats. var. longifolia | longleaf brickellbush | Asteraceae
|
| BRLOM | Brickellia longifolia S. Wats. var. multiflora (Kellogg) Cronq. | longleaf brickellbush | Asteraceae
|
| BRLO | Brickellia longifolia S. Wats. | longleaf brickellbush | Asteraceae
|
| BRMIS2 | Brickellia microphylla (Nutt.) Gray ssp. scabra (Gray) W.A. Weber | Brickellia microphylla var. scabra | Asteraceae
|
| BRMIM | Brickellia microphylla (Nutt.) Gray var. microphylla | littleleaf brickellbush | Asteraceae
|
| BRMIS | Brickellia microphylla (Nutt.) Gray var. scabra Gray | rough brickellbush | Asteraceae
|
| BRMIW | Brickellia microphylla (Nutt.) Gray var. watsonii (B.L. Robins.) Welsh | Watson's brickellbush | Asteraceae
|
| BRMI | Brickellia microphylla (Nutt.) Gray | littleleaf brickellbush | Asteraceae
|
| BRMO3 | Brickellia mosieri (Small) Shinners | Brickellia eupatorioides var. floridana | Asteraceae
|
| BRMU2 | Brickellia multiflora Kellogg | Brickellia longifolia var. multiflora | Asteraceae
|
| BRNE | Brickellia nelsonii B.L. Robins. | Nelson's brickellbush | Asteraceae
|
| BRNE2 | Brickellia nevinii Gray | Nevin's brickellbush | Asteraceae
|
| BROBL | Brickellia oblongifolia Nutt. var. linifolia (D.C. Eat.) B.L. Robins. | narrowleaf brickellbush | Asteraceae
|
| BROBO | Brickellia oblongifolia Nutt. var. oblongifolia | Mojave brickellbush | Asteraceae
|
| BROBT | Brickellia oblongifolia Nutt. var. typica B.L. Robins. | Brickellia oblongifolia var. oblongifolia | Asteraceae
|
| BROB | Brickellia oblongifolia Nutt. | Mojave brickellbush | Asteraceae
|
| BRPA | Brickellia parvula Gray | Mt. Davis brickellbush | Asteraceae
|
| BRPR | Brickellia pringlei Gray | Pringle's brickellbush | Asteraceae
|
| BRROC | Brickellia rosemarinifolia (Vent.) W.A. Weber var. chlorolepis (Woot. & Standl.) W.A. Weber | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| BRRO3 | Brickellia rosemarinifolia (Vent.) W.A. Weber | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| BRRU | Brickellia rusbyi Gray | stinking brickellbush | Asteraceae
|
| BRSC5 | Brickellia scabra (Gray) A. Nels. ex B.L. Robins. | Brickellia microphylla var. scabra | Asteraceae
|
| BRSH2 | Brickellia shaffneri (Gray) Shinners | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| BRSH | Brickellia shineri M.E. Jones ex Flyr | Flyriella parryi | Asteraceae
|
| BRSI2 | Brickellia simplex Gray | Sonoran brickellbush | Asteraceae
|
| BRSQ | Brickellia squamulosa Gray | Asanthus squamulosus | Asteraceae
|
| BRVE | Brickellia venosa (Woot. & Standl.) B.L. Robins. | veiny brickellbush | Asteraceae
|
| BRVEP | Brickellia veronicifolia (Kunth) Gray var. petrophila (B.L. Robins.) B.L. Robins. | veronicaleaf brickellbush | Asteraceae
|
| BRVEV | Brickellia veronicifolia (Kunth) Gray var. veronicifolia | veronicaleaf brickellbush | Asteraceae
|
| BRVE2 | Brickellia veronicifolia (Kunth) Gray | veronicaleaf brickellbush | Asteraceae
|
| BRVI2 | Brickellia viejensis Flyr | Tierra Vieja brickellbush | Asteraceae
|
| BRWA | Brickellia watsonii B.L. Robins. | Brickellia microphylla var. watsonii | Asteraceae
|
| BRICK | Brickellia Ell. | brickellbush | Asteraceae
|
| BRFE2 | Brickelliastrum fendleri (Gray) King & H.E. Robins. | Fendler's brickellbush | Asteraceae
|
| BRICK3 | Brickelliastrum King & H.E. Robins. | brickellbush | Asteraceae
|
| BRFU2 | Brigantiaea fuscolutea (Dickson) R. Sant. | | Brigantiaceae
|
| BRLE8 | Brigantiaea leucoxantha (Sprengel) R. Sant. & Hafellner | | Brigantiaceae
|
| BRPU18 | Brigantiaea purpurata (Zahlbr.) Hafellner & Bellem. | | Brigantiaceae
|
| BRIGA | Brigantiaea Trevisan | brigantiaea | Brigantiaceae
|
| BRCIN | Brighamia citrina (Forbes & Lydgate) St. John var. napaliensis St. John | Brighamia insignis | Campanulaceae
|
| BRCI5 | Brighamia citrina (Forbes & Lydgate) St. John | Brighamia insignis | Campanulaceae
|
| BRIN4 | Brighamia insignis Gray | cabbage on a stick | Campanulaceae
|
| BRRE2 | Brighamia remyi St. John | Brighamia rockii | Campanulaceae
|
| BRRO | Brighamia rockii St. John | Molokai ohaha | Campanulaceae
|
| BRIGH | Brighamia Gray | brighamia | Campanulaceae
|
| BRDI7 | Brintonia discoidea (Ell.) Greene | Solidago discoidea | Asteraceae
|
| BRHU4 | Briza humilis M. Bieb. | quakinggrass | Poaceae
|
| BRMA | Briza maxima L. | big quakinggrass | Poaceae
|
| BRME | Briza media L. | perennial quakinggrass | Poaceae
|
| BRMI2 | Briza minor L. | little quakinggrass | Poaceae
|
| BRSP6 | Briza spicata Sibth. & Smith | Briza humilis | Poaceae
|
| BRIZA | Briza L. | quakinggrass | Poaceae
|
| BROB2 | Brizopyrum obtusiflorum Fourn. | Eragrostis obtusiflora | Poaceae
|
| BRAP | Brodiaea appendiculata Hoover | appendage brodiaea | Liliaceae
|
| BRBR3 | Brodiaea bridgesii S. Wats. | Triteleia bridgesii | Liliaceae
|
| BRCAC6 | Brodiaea californica Lindl. var. californica | California brodiaea | Liliaceae
|
| BRCAL | Brodiaea californica Lindl. var. leptandra (Greene) Hoover | California brodiaea | Liliaceae
|
| BRCA4 | Brodiaea californica Lindl. | California brodiaea | Liliaceae
|
| BRCA11 | Brodiaea capitata Benth. | Dichelostemma capitatum ssp. capitatum | Liliaceae
|
| BRCL2 | Brodiaea clementina (Hoover) Munz | Triteleia clementina | Liliaceae
|
| BRCO2 | Brodiaea congesta Sm. | Dichelostemma congestum | Liliaceae
|
| BRCOC | Brodiaea coronaria (Salisb.) Engl. ssp. coronaria | crown brodiaea | Liliaceae
|