Rock Garden Plants
Viola  sempervirens Greene  sect. Viola 
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FamilyVIOLACEAE
Genus species var.Viola  sempervirens Greene  sect. Viola
SynonymsViola sarmentosa Hook.
Territory Subarctic AmericaWestern CanadaNorthwestern U.S.A.Southwestern U.S.A.AlaskaBritish ColumbiaCaliforniaIdahoOregonWashington
thickets and woods
Altitudelowland-montane
Description leaves orbiculate-ovate, crenate, abaxially rusty, petals 8-12mm long, three lower petals finely striate, lateral petals at base barbate, spur wide, 1-2mm long
Size5-10cm
Coloryellow
Bloomearly spring
Ca
Typelax cushion
Cultivationcold, shady site with a humous, moist soil
alpine house, moist, humous soil, shade
Propagationseed in winter, barely covered, germ. 1-3 months, 13-16°C
division after flowering and in fall
BibliographyHitchcock, C.L.: Vascular Plants of the Pacific Northwest
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý