United States, California, Imperial, Chocolate Mountains Aerial Gunnery Range, beside old Niland to Blythe road on the upper alluvial fan in mouth of canyon below Lion Head Mountain, 17 km NE (63°) of Niland
33.30889 -115.355 +-250m.
33° 18m 32s N; 115° 21m 18s W
Lion Head Mountain 7.5’ Q.
314 meters
960 - 1030ft.
Active washes, wide and shallow but subject to flooding; with Ambrosia salsola, A. dumosa, Hyptis emoryi, Parkinsonia florida, Olneya, Cylindropuntia munzii, C. bigelovii, Senegalia greggii, etc.
Fairly common annual; white rays and yellow disk. Most plants vegetative.