Taxon  Report   4251    
Horkelia tenuiloba  (Torr.) A. Gray
Santa rosa horkelia,  Thin lobed horkelia
Horkelia tenuiloba
© 2002 Doreen L. Smith
Photos from
CalPhotos / Calflora
Horkelia tenuiloba
© 2012 Aaron Arthur
Horkelia tenuiloba
© 2012 Aaron Arthur
Horkelia tenuiloba, a dicot, is a perennial herb that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Horkelia tenuiloba
© 2010 Vernon Smith
Family: ROSACEAE  
Genus: Horkelia
Communities: Chaparral

Habitat: openings

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Potentilla micheneri
More information about  Horkelia tenuiloba
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 17, 2019).