USA, California, Riverside County, Sonoran (Colorado) Desert; SE side of McCoy Mountains, upper part of wash c. 4.5 mi. NW of Blythe Airport, c. 3.5 mi. ENE of McCoy Peak
33.6561 -114.793 +-1000m.
33 39 22 N 114 47 35 W TRS: 6S 21E 16 W/2
204-244 metros
670 - 800 - ft.
Canyon with large rocky wash, draining SE, bordered by rocky slopes and desert pavement; sandy, gravelly and rocky soil.
Olneya , Larrea, Acacia, Hyptis, Ambrosia dumosa, etc.
Scarce annual on desert pavement; at point where GPS coordinates taken.