Piperia cooperi is a perennial herb that is native to California, and found only slightly beyond California borders.
California Rare Plant Rank: 4.2 (limited distribution).
[Wikipedia] Distribution, Habitat, Conservation: The orchid is endemic to chaparral, coastal sage scrub, and oak woodland habitats. It is native to southern California and the border area in Baja California.
This orchid is a listed vulnerable species on the California Native Plant Society Inventory of Rare and Endangered Plants.[2] (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).
one or more occurrences