Calflora, a 501c3 non-profit
Distribution by County   9291    
Botrychium pumicola  Coville ex Underw.
Crater lake grapefern
Botrychium pumicola is a fern that is native to California.
California Rare Plant Rank: 2B.2 (rare, threatened, or endangered in CA; common elsewhere).
Record Count by County

Siskiyou: 5

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 02/27/2024).