[hortipedia.com] Taxonomy: Cistanthe parryi was first described and the name validly published by Asa Gray but was revised and reclassified by Mark A. Hershkovitz in 1990. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 03/28/2025).