To be looked for in northern SDG Co., west of Warner Springs. Some habitat probably lost during creation of Vail Lake; also threatened by urbanization, vehicles, and agriculture. See Bulletin of the Southern Academy of Sciences 31:67 (1932) for original description, and Memoirs of the New York Botanical Garden 13:489 (1964) for taxonomic treatment.
California Native Plant Society (CNPS).
Inventory of Rare and Endangered Plants (online edition, v8-02).
California Native Plant Society. Sacramento, CA. Accessed on
.