''Bromus arizonicus'' is a species of

brome grass ''Bromus'' is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 ...

known by the common name Arizona brome. It is native to the

Southwestern United States The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, Ne ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, and

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

, where it grows in many types of grassy valley and desert habitat.

Description

It is an annual grass growing tall with an open, branching

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

. The spikelets are flat and hairy and have awns up to long.

References

External links

Jepson Manual TreatmentUSDA Plants ProfilePhoto gallery
arizonicus Bunchgrasses of North America Native grasses of California Grasses of the United States Flora of Arizona Flora of Baja California Flora of the California desert regions Flora of the Sierra Nevada (United States) Flora of the Southwestern United States Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the Mojave Desert Natural history of the Peninsular Ranges Natural history of the Transverse Ranges {{Pooideae-stub