Western U.S., especially southern California and Orange County; Baja California, Mexico.
IRVC - University of California, Irvine Herbarium. Occurrence dataset (ID: ) https://cch2.org/portal/content/dwca/IRVC_DwC-A.zip accessed via the Symbiota Local Portal Portal, https://dev010.symbiota.org/Portal, 2026-06-22).