Known from fewer than ten occurrences. Feral herbivores removed from SCM Isl., and vegetation recovering. May be difficult to distinguish from ssp. kinkiense; see Madroño 47(2):116-126 (2000) for discussion.
California Native Plant Society (CNPS).
Inventory of Rare and Endangered Plants (online edition, v8-01a).
California Native Plant Society. Sacramento, CA. Accessed on
.