Rock Garden Plants
Gentiana  calycosa Griseb.  sect. Pneumonanthe 
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FamilyGENTIANACEAE
Genus species var.Gentiana  calycosa Griseb.  sect. Pneumonanthe
SynonymsDasystephana calycosa (Griseb.) Rydb.
 Gentiana obtusiloba (Rydb.) Hultén
 Pneumonanthe calycosa (Griseb.) Greene
Territory Western CanadaNorthwestern U.S.A.Southwestern U.S.A.
grassland
Altitude2200-3300m
Description stem leaves 7-9 pairs, broadly lanceolate to ovate-orbiculate, cordate, connate, flowers solitary, terminal, tubular-infundibuliform, green variegate
Size5-30cm
Colordark blue
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
BibliographyHitchcock, C.L.: Vascular Plants of the Pacific Northwest
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý