United States, California, Imperial, Bureau of Land Management property. Palm Wash, east of Jacumba Mountains, 6.3 air miles W of intersection of Interstate hwy. 8 and Imperial Highway (S-2), and 2.5 miles ENE of Dos Cabezas Spring, < 0.1 mile E of San Diego County line.
32.7274 -116.1019 +-161m. WGS84
405 meters (1328ft)
Bare area with few shrubs, adjacent to San Diego & Arizona Eastern railroad tracks, in coarse sand.
With Chaenactis carphoclinia var. carphoclinia, Logfia filaginoides, Salvia columbariae in Cheesebush Scrub: Ambrosia salsola var. salsola, Acacia greggii, Bebbia juncea var. aspera, Hyptis emoryi, Ephedra californica.
Corolla white with reflexed lobes, pollen yellow. Very uncommon.