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{{Taxobox
| color = lightgreen
| name = ''Coptis''
| image = Coptis occidentalis.jpg
| image_width = 240px
| image_caption = ''Coptis occidentalis'' flowers
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Ranunculales]]
| familia = [[Ranunculaceae]]
| genus = '''''Coptis'''''
| genus_authority = [[Richard Anthony Salisbury|Salisb.]]
| subdivision_ranks = Species
| subdivision =
See text
}}

'''''Coptis''''' ('''Gold Thread''' or '''Goldenthread''') is a genus of between 10–15 species of [[flowering plant]]s in the family [[Ranunculaceae]], native to [[Asia]] and [[North America]].

;Selected species
*''[[Coptis aspleniifolia]]''
*''[[Coptis chinensis]]''
*''[[Coptis deltoidea]]''
*''[[Coptis groenlandica]]''
*''[[Coptis japonica]]''
*''[[Coptis laciniata]]''
*''[[Coptis occidentalis]]''
*''[[Coptis omeiensis]]''
*''[[Coptis quinquefolia]]''
*''[[Coptis quinquesecta]]''
*''[[Coptis teeta]]''
*''[[Coptis trifolia]]''

[[Image:Coptis occidentalis2.jpg|left|thumb|''Coptis occidentalis'' fruit]]
===Uses===
''Coptis teeta'' is used as a medicinal [[herb]] in the [[Himalaya]]n regions of [[India]], used as a bitter tonic for [[dyspepsia]]. It is also known to help [[insomnia]] in [[Chinese Medicine]]

Made into a paste, salve, powder, or infusion, it is said to improve digestion, restore appetite, and relieve inflammation of the stomach. It is also employed to assist the treatment of [[alcoholism]]. <br clear = all>

==External links==
[[Image:Coptis aspleniifolia.jpg|thumb|''Coptis aspleniifolia'' leaves]]
*[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=107946 Flora of North America: ''Coptis'']
*[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=107946 Flora of China: ''Coptis'']

[[Category:Ranunculaceae]]
[[Category:Herbs]]
[[Category:Medicinal plants]]
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