Cryptantha ganderi is an annual herb that is native to California, and also found in Baja California; Sonora, Mexico and Arizona.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
[southwestdesertflora.com] Range, Rarity: Cryptantha ganderi is rare in the United States; it is found only in AZ and CA. In CA it is found in the Borrego Valley area and in AZ it is found in the Yuma area. It is also native to Baja California, Sonora and northwest Mexico. (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: 04/14/2025).