Horkelia sericata Calflora

Calflora, a 501c3 non-profit

Taxon Report

Horkelia sericata S. Watson

Howell's horkelia, Silky horkelia

2015 John Doyen

2014 John Doyen

2010 Sean B. Smith

1995 Saint Mary's College of California

Horkelia sericata is a perennial herb that is native to California, and also found in Oregon.

California Rare Plant Rank: 4.3 (limited distribution).


	Plant Range Observation Search (136 records) Plant Characteristics one or more occurrences within a 7.5-minute quadrangle

Bloom Period

Photos on Calflora


Genus:	Horkelia
Family:	Rosaceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Ultramafic affinity: 5.6 - strict endemic

Communities: Yellow Pine Forest, Chaparral

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:


JEF	Potentilla howellii
ICPN	Potentilla laxiflora

Information about Horkelia sericata from other sources


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora USDA PLANTS Profile (HOSE) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map CNPS Inventory: 4.3 Consortium of California Herbaria 2	Add an Observation Location Suitability Planting Guide Distribution by County
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Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 06/03/2023).