2015 George Butterworth 2012 Zack Abbey 2016 Amelia Ryan 2007 George Butterworth Amelia Ryan Amelia Ryan
Delphinium umbraculorum is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2024. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 11/22/2024).