United States, California, Los Angeles, Grown in botanic garden (Rancho Santa Ana Botanic Garden, Claremont).
Seed bed in sand (silt).
Planted in a seed bed in sand (silt) 2-1-33. Propagation number 1606, from Herbarium specimen number 4302 (RSA-5349). Originally from Cottonwood Springs, Eagle Mts., Riverside Co.