Shrubby Deervetch

Acmispon rigidus

"Acmispon rigidus", synonyms "Lotus rigidus" and "Ottleya rigida", is a flowering plant in the pea family, native to the southwestern United States and northwestern Mexico. It is known as shrubby deervetch or desert rock-pea. It is found in the Mojave Desert and Sonoran Desert.
Desert rock-pea In rocky creosote bush scrub and pinyon-juniper woodland, Death Valley National Park, California. A woody, nitrogen-fixing perennial.  Acmispon rigidus,Geotagged,Spring,United States

Appearance

It is a perennial herbaceous plant growing to 0.5–1.5 m tall. The leaves are irregularly pinnate or palmate with three or five leaflets, 5–17 mm long. The flowers are yellow to cream, turning red or purple as they age.

Distribution

"Acmispon rigidus" is found in the southwestern United States and in northwestern Mexico. It occurs in the Mojave Desert north to Inyo County, California, and in the Sonoran Desert south to the Baja California Peninsula.

Habitat

It is found on dry slopes and desert dry washes below 6,000 ft above sea level, in Joshua tree woodland, and in pinyon-juniper woodland plant communities.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderFabales
FamilyFabaceae
GenusAcmispon
SpeciesA. rigidus