United States, California, San Bernardino, Mojave Desert; Northcentral Mojave Desert region: Calico Mountains; Close to Camp Rock in Mule Canyon, north of the city of Yermo. Near 34.93676N, 116.83867W. T10N R01E S26 NE1/4 S23SE1/4 USGS Quadrangle: Yermo 1:24,000
General collecting along washed out wash and slopes on the west side of canyon. Most collections south of the varied color badlands (down canyon). The canyon much used and abused by off roaders. Polant associates include: Larrea tridentata, Ambrosia dumosa, Encelia farinosa, E. frutescens, Hymenoclea salsola, Atriplex hymenelytra, and Atriplex polycarpa. With many native and introduced annuals. Growing on sandy canyon bottom, and slopes.
Label says Herbarium of Rancho Santa Ana Botanic Garden. Entered into RSA Database (11644RSA).