Rock Garden Plants
Gentiana  clausa Raf.  sect. Pneumonanthe 
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FamilyGENTIANACEAE
Genus species var.Gentiana  clausa Raf.  sect. Pneumonanthe
SynonymsGentiana andrewsii var. intermedia Kusn.
 Pneumonanthe clausa (Raf.) Greene
Territory Eastern CanadaNortheastern U.S.A.Southeastern U.S.A.
grassland
Description stems rounded, smooth, leaves ovate or lanceolate, acuminate, 3-nerved, flowers in whorls, sessile, clavate, short, closed
Size30-50cm
Colorblue
Bloomsummer
Ca
Typetuft
Cultivationmesic, slightly humous, sunny site
alpine house, moist, rich, drained soil, sun
Propagationseed in winter, barely covered, germ. 1-3 months, 10-13°C
division in spring; cuttings in late spring
BibliographyScoggan, H.J. (1978-1979) The Flora of Canada
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý