United States, California, San Bernardino, Transverse Ranges; San Bernardino Mountains region: Bighorn Mountains; San Bernardino National Forest; collecting in Arrastre Creek, in the southeast corner of Horsethief Flat.; Big Bear City
34.31627 -116.76663
T3N R2E S27
1467 meters
4813ft.
A riparian area. With slopes above creek having pinyon/joshua tree woodland.