Mexico, Sonora, Ca. 5 mi. NE of El Datil, Altar District.
30.626 -111.96
Granodioritic hills with Cercidium, Sahuaro, Olneya, Pitaya, Fouquieria, etc.
{"habit":"Single or cespitose, single or branched, arborescent shrubs 2 to 4 m tall, skirted; leaves green, persitent; inflorescence twice as long as leaves; bracts and buds purplish red; flowers white."}