Rock Garden Plants
Plagiorhegma  dubium Maxim.   
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FamilyBERBERIDACEAE
Genus species var.Plagiorhegma  dubium Maxim. 
SynonymsJeffersonia dubia (Maxim.) Benth. & Hook.f.
 Jeffersonia manchuriensis Hance
Territory Russian Far EastChinaEastern AsiaAmurManchuria, (JilinLiaoning)KoreaPrimorye
thickets and woods
Altitude500-1100m
Description leaves thinly petiolate, basal, orbiculate, bilobate, palmately veined, bluish green, subpeltate,, corolla openly crateriform, anthers light yellow
Size15-20cm
Colorbluish violet
Bloomspring
Caind
Typetuft
Cultivationcold, shady site with a humous, moist soil
alpine house, moist, humous soil, shade
Propagationseed in winter, germ. 3-12 months, 13-16°C
division after flowering; cuttings in late summer
BibliographyFlora of China www.eFloras.org
The Plant List (2013) www.theplantlist.org
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(c) 1990-2016 RNDr. Pavel Slabý