Page authors: Dan Post, David Giblin
Coptis trifolia
threeleaf goldthread
Specimens
Photos

Distribution: Occurring west of the Cascades crest in Washington in the northwest corner of the Olympic Peninsula. Alaska to Washington, Idaho and Montana, east across northern North America to the Atlantic; disjunct in Clackamas County, Oregon; also in Greenland and eastern Eurasia.

Habitat: Deep woodland, often where swampy.

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Threatened in Washington (WANHP)

Description:

[none provided]


Accepted Name:
Coptis trifolia (L.) Salisb.
Publication: Trans. Linn. Soc. London, Bot. 8:305. 1807.

Synonyms & Misapplications:
Coptis groenlandica (Oeder) Fernald
Additional Resources:

PNW Herbaria: Specimen records of Coptis trifolia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Coptis trifolia checklist entry.

OregonFlora: Coptis trifolia information.

E-Flora BC: Coptis trifolia atlas page.

CalPhotos: Coptis trifolia photos.

USDA Plants: Coptis trifolia information.

4 photographs:
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