Rock Garden Plants
Coptis japonica (Thunb.) Makino  
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FamilyRANUNCULACEAE
Genus speciesCoptis japonica (Thunb.) Makino 
SynonymsThalictrum japonicum Thunb.
 Coptis anemonifolia Siebold & Zucc.
 Coptis brachypetala Siebold & Zucc.
Habitatthickets and woods
Descriptionlower leaves ternate, leaflets simple or shallowly lobate, 2-5cm long, broadly ovate, acute, petiolulate, irregularly acute-dentate, flowers 1-3, ca. 1cm across
Size15-20cm
Colorwhite
Bloomspring
Ca
Typetuft
Cultivationcold, shady site with a humous, moist soil
alpine house, moist, humous soil, shade
Propagationfresh seed, germ. 3-12 months, 13-16°C
division in early spring
Territory Asia-Temperate
     Eastern Asia (Japan)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

RANUNCULACEAE

Coptis japonica (Thunb.) Makino, Bot. Mag. (Tokyo) 13(148): 198 (1899)

Basionym:
Thalictrum japonicum Thunb., Trans. Linn. Soc. 2: 337 (1794)

Synonyms:
Coptis anemonifolia Siebold & Zucc.
Coptis brachypetala Siebold & Zucc.
Coptis japonica anemonifolia (Siebold & Zucc.) H.Ohba
Coptis japonica viridiflora Honda ex Kadota
Coptis orientalis Maxim.

c. & s. Japan
38 JAP

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