Collected
23 May 1992.
California, United States
Locality: San Deigo Co., Plum Canyon, ca. 1/2 mi. S of Hwy 78, Anza Borrego Desert State Park. 33 07'23.00"N, 116 25'24.21W. 496 m elevation.
Environment description: Sandy soil at edges of arroyo with Larrea divaricata subsp. tridentata, Psorothamnus schottii. Lower Colorado River Valley Subdivision Sonoran Desertscrub.
Number of plants sampled: 1