Rhamnus pirifolia is a tree or shrub that is native to California, and also found elsewhere in western North America.California Rare Plant Rank: 4.2 (limited distribution).
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: 03/29/2025).
one or more occurrences