University of California, Riverside Plant Herbarium (UCR)
UCR0039341
UCR-BPS-277556
UCR-277556
Sphaeralcea ambigua A. Gray
Malvaceae
Mitch Provance
10093
2008-03-15
2008-3-15
United States, California, Imperial, E side of Hwy 78, about 7 miles NNE of intersection with Ogilby Rd., 2 miles N of Buzzards Peak, c. 2.5 miles NNE of the border checkpoint
33.17086 -114.86653
293 meters (961ft)
Sparsely vegetated, rocky, ridge (volcanic) with Ferocactus, and sandy wash with Hymenoclea, Ephedra aspera, Opuntia basilaris, Olneya, Fouquieria, etc.