United States, California, San Diego County, Peninsular Range: Boden Canyon Ecological Reserve at E end of San Pasqual Valley, lower part of reserve along Santa Ysabel Creek at confluence with Clevender Canyon Elev. given as 660-700ft.
33.0897222222 -116.9025
33° 05' 23" N, 116° 54' 09" W
201-213 meters
201.0000000000-213.0000000000 m
Bouldary canyon bottom, sand and gravel substrate; riparian forest with Quercus agrifolia, Populus frem., Platanus r., Salix lae., S. goodd. On dry flats on canyon bottom, among rocks.