United States, California, Mendocino, 70 air miles SSE of Eureka, 20 air miles S of Garberville. At the mouth of Usal Creek. T23N R18W S22 SW1/4 of NE1/4 USGS Quadrangle: Hales Grove 1:24000
39.833056 -123.846944 +-402m. NAD83
T23N R18W S22 SW1/4 of NE1/4; 39§ 49m 59s N; 123§ 50m 49s W
Scoured flood plain. Associates: Trifolium, Lupinus, Rumex, Lolium, and Cyperus. Flat and at sea level.
Voucher specimen; Bowcutt, F. 1996. A floristic study of Sinkyone Wilderness State Park, Mendocino County, CA. The Wasmann Journal of Biology 51 (1-2): 64-143.