UCR - University of California, Riverside Herbarium - Vascular Plants (UCR)
UCR0016760
UCR-BPS-99363
UCR-99363
Asclepias californica Greene
Apocynaceae
Steve Boyd
9580
1997-04-20
1997-4-20
A.C. Sanders, et al.
United States, California, Kern, Pleito Hills, San Emigdio Ranch, ridge on W side of Pleito Canyon, c. 4.5 air miles due north of Antimony Peak; San Emigdio Range
34.94353 -119.11153
T10N R21W sec22
1098 meters (3601ft)
Relatively gentle ridgetop w/ deep, friable adobe soil, southerly slopes gravelly, grading into very barren areas of dark, highly weathered volcanic substrate w/ very thin soil. Ridgetop & more mesic exposures w/ open woodland of Quercus douglasii & Juniperus californica, xeric slopes more open w/ scattered Juniperus, Chrysothamnus nauseosus, Eriogonum fasciculatum polifolium, Ribes quercetorum, & Penstemon centranthifolius.