Rock Garden Plants
Viola  praemorsa Lindl.   
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FamilyVIOLACEAE
Genus species var.Viola  praemorsa Lindl. 
SynonymsViola nuttallii var. lingulifolia (Nutt.) Jeps.
 Viola nuttallii ssp. praemorsa (Douglas) Piper
Territory Western CanadaNorthwestern U.S.A.Southwestern U.S.A.
grassland and thickets
Altitude500-1700m
Description villose, leaves ovate or oblong-ovate, cordate, obtuse, crenate, 25-50mm long, petals 10-15mm long, three lower petals brown-purple striate, lateral petals barbate
Size5-10cm
Coloryellow
Bloomsummer
Ca
Typetuft
Cultivationmesic, slightly humous, semi-shady site
alpine house, moist, rich, drained soil, semi-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