Sidalcea hickmanii ssp. napensis Calflora

Distribution by County 11137

Sidalcea hickmanii Greene ssp. napensis S. R. Hill

Napa checkerbloom

Sidalcea hickmanii ssp. napensis is a perennial herb that is native to California.

California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).

Record Count by County


Napa: 9	Solano: 1	Sonoma: 13

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 01/19/2026).