| Acmispon rigidus | |
|---|---|
| | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Acmispon |
| Species: | A. rigidus |
| Binomial name | |
| Acmispon rigidus (Benth.) Brouillet (2008) | |
| Synonyms [1] | |
| |
Acmispon rigidus, synonyms Lotus rigidus and Ottleya rigida, is a flowering plant in the pea family (Fabaceae), native to the southwestern United States and northwestern Mexico. [1] It is known as shrubby deervetch [2] or desert rock-pea. It is found in the Mojave Desert and Sonoran Desert. [3] [4]
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. [5]
Acmispon rigidus is found in the southwestern United States (Arizona, California, Nevada and Utah) and in northwestern Mexico. [1] It occurs in the Mojave Desert north to Inyo County, California, and in the Sonoran Desert south to the Baja California Peninsula. [3] 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. [3]