Rattle Brome, Rattlesnake Brome: Bromus briziformis (Synonym: Bromus brizaeformis) -
Fringed Brome: Bromus ciliatus (Synonyms: Bromopsis canadensis, Bromopsis ciliata, Bromus canadensis, Bromus ciliatus var. genuinus, Bromus ciliatus var. intonsus, Bromus dudleyi, Bromus richardsonii var. pallidus) -
Bald Brome, Hairy Chess, Meadow Brome: Bromus commutatus (Synonyms: Bromus commutatus var. apricorum, Bromus commutatus var. commutatus, Bromus popovii, Bromus pratensis var. apricorum, Bromus racemosus) -
Ripgut Grass, Ripgut Brome, Great Brome: Bromus diandrus (Synonyms: Anisantha rigida, Bromus maximus, Bromus rigidus var. gussonii, Bromus rigidus var. rigidus, Bromus villosus) -
Erect Brome: Bromus erectus (Synonyms: Bromopsis erecta, Bromus erectus var. hackelii) - ?
Soft Brome, Soft Chess: Bromus hordeaceus (Synonyms: Bromus hordeaceus ssp. divaricatus, Bromus hordeaceus ssp. hordeaceus, Bromus hordeaceus ssp. molliformis, Bromus hordeaceus ssp. pseudothominei, Bromus hordeaceus ssp. thominei, Bromus hordeaceus var. glabrescens, Bromus hordeaceus var. leptostachy, Bromus mollis, Bromus thominei) -
Smooth Brome: Bromus inermis (Synonyms: Bromopsis inermis, Bromus inermis ssp. inermis, Bromus inermis ssp. inermis var. inermis) -
Field Brome, Japanese Brome: Bromus japonicus (Synonyms: Bromus anatolicus, Bromus arvensis, Bromus japonicus ssp. anatolicus, Bromus japonicus var. porrectus, Bromus patulus) -
Chinook Brome: Bromus laevipes -
Maritime Brome, Seaside Brome: Bromus maritimus (Synonym: Bromus carinatus var. maritimus) -
Orcutt's Brome: Bromus orcuttianus (Synonyms: Bromopsis orcuttiana, Bromus orcuttianus var. hallii, Bromus orcuttianus var. orcuttianus) -
Bald Brome, Smooth Brome: Bromus racemosus (Synonym: Bromus commutatus, Bromus commutatus var. apricorum, Bromus popovii) - ?
Foxtail Brome, Fox-tail Brome, Foxtail Red Brome: Bromus rubens (Synonyms: Anisantha rubens, Bromus madritensis ssp. rubens) -
Chess Brome, Ryebrome, Rye Brome, Whiskered Brome: Bromus secalinus (Synonyms: Bromus grossus, Bromus secalinus ssp. grossus, Bromus secalinus var. hirsutus, Bromus secalinus var. hirtus, Bromus secalinus var. grossus, Bromus secalinus var. secalinus, Bromus secalinus var. velutinus) -
California Brome: Bromus sitchensis var. carinatus (Synonyms: Bromus carinatus, Bromus carinatus var. californicus, Bromus carinatus var. carinatus, Bromus carinatus var. hookerianus, Ceratochloa carinata) -
Bordered California Brome, Mountain Brome: Bromus sitchensis var. marginatus (Synonyms: Bromus breviaristatus, Bromus carinatus var. linearis, Bromus carinatus var. marginatus, Bromus marginatus var. breviaristatus, Bromus marginatus var. latior, Bromus marginatus var. seminudus, Ceratochloa marginata) -
Alaska Brome, Alaska Brome-grass: Bromus sitchensis var. sitchensis (Synonym: Bromus sitchensis var. sitchensis) - Found west of the eastern foothills of the Cascade Mountains.
Corn Brome: Bromus squarrosus (Synonym: Bromus squarrosus var. villosus) -
Barren Brome, Poverty Brome: Bromus sterilis (Synonym: Anisantha sterilis) -
Hoary Brome, Narrow-leaved Bromegrass: Bromus subvelutinus (Synonym: Bromus luzonensis) - ?
Suksdorf's Brome: Bromus suksdorfii (Synonym: Bromopsis suksdorfii) -
Cheatgrass Brome, Downy Cheat, Downy Chess: Bromus tectorum (Synonyms: Anisantha tectorum, Bromus tectorum var. glabratus, Bromus tectorum var. hirsutus, Bromus tectorum var. nudus, Bromus tectorum var. tectorum) -
Columbia Brome, Narrow-flowered Brome: Bromus vulgaris (Synonym: Bromopsis vulgaris, Bromus vulgaris var. eximius, Bromus vulgaris var. robustus, Bromus vulgaris var. vulgaris) -