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Coptis Salisbury. Subfamily: Coptidoideae. Goldthread.

A genus of about 15 species, perennial herbs, of boreal to temperate e. Asia and North America. If Glaucidium (of e. Asia) and Hydrastis are excluded (as here) from Ranunculaceae, Coptis is the "basalmost" genus in the family, treated as a monogeneric subfamily Coptidoideae and tribe Coptideae.

Ref: Ford (1997f) In Flora of North America Editorial Committee (1997); Tamura In Kubitzki, Rohwer, & Bittrich (1993); Xiang et al. (2016); Zhai et al. (2019). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Scott Ward | Coptis trifolia | Original Image ⭷
image of plant© Erik Danielson | Coptis trifolia source | Original Image ⭷

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See something wrong or missing on about Coptis? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.