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Coptis trifolia

Family: ranunculaceae
Common name(s): Goldthread
Hardiness ratings: USDA zone 2 - 7

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Coptis trifolia

• Asianflora - Plant photos. (3 photos)
• Connecticut Botanical Society - Wildflower profile. (3 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 2-7) (2 photos)
• Garden.org - Community-assembled plant profile (1 photo)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (17 photos)
• Ontario Rock Garden Society - Germination information

Coptis trifolia subsp. groenlandica

Links

• Ontario Rock Garden Society - Germination information