https://pfaf.org/User/Plant.aspx?LatinName=Coptis+trifolia
Coptis trifolia is an evergreen Perennial growing to 0.2 m (0ft 8in) by 0.5 m (1ft 8in). See above for USDA hardiness. It is hardy to UK zone 2. It is in leaf...
coptis trifoliaplant databasegoldthreadpfaf