Rock Garden Plants
Gentiana  platypetala Griseb.  sect. Pneumonanthe 
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FamilyGENTIANACEAE
Genus species var.Gentiana  platypetala Griseb.  sect. Pneumonanthe
SynonymsGentiana covillei A.Nelson & J.F.Macbr.
 Pneumonanthe platypetala (Griseb.) Greene
Territory Subarctic AmericaWestern CanadaAlaskaBritish Columbia
grassland
Altitudearctic-alpine
Description leaves abbreviate, suborbiculate to oblong, on stem dense, flowers terminal, solitary, sessile, amongst upper leaves, calyx lobes ovate, acute, corolla lobes truncate
Size20-40cm
Colorblue
Bloomlate summer
Ca
Typetuft
Cultivationhumous, moist, but in winter drier, semi-shady site
alpine house, moist, humous soil, shading in summer
Propagationseed in winter, barely covered, germ. 1-3 months, 10-13°C
division in spring; cuttings in late spring
BibliographyHultén, E. (1968) Flora of Alaska...
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý