[oregonflora.org] Description, Habitat: Cryptantha flaccida is distinguished by having recurved calyx hairs and a single, smooth nutlet with a swollen base and long-acuminate tips. It is similar to C. rostellata (see discussion). (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
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https://www.calflora.org/(Accessed: 04/05/2025).