Rock Garden Plants
Gentiana affinis Griseb. sect. Pneumonanthe 
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FamilyGENTIANACEAE
Genus speciesGentiana affinis Griseb. sect. Pneumonanthe
BibliographyFl. Bor.-Amer. [W.J.Hooker] 2: 56 (1837)
Native RangeCanada to w. & c. USA
Primary BiomeTemperate
Habitatgrassland
Altitude200-3900m
Descriptionleaves numerous, lower leaves reduced, the other narrowly lanceolate to elliptic-ovate, flowers several, tubular-infundibuliform, 20-45mm long, lobes ovate
Size5-35cm
Colordark blue
Bloomsummer
Ca-
Typeperennial
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
SynonymsDasystephana affinis (Griseb.) Rydb.
Dasystephana bigelovii (A.Gray) Rydb.
Dasystephana forwoodii (A.Gray) Rydb.
Dasystephana interrupta (Greene) Rydb.
Dasystephana oxyloba Greene
Dasystephana rusbyi (Greene ex Kusn.) Wooton & Standley
Gentiana affinis var. bigelowii (A.Gray) Kusn.
Gentiana affinis var. brachycalyx A.Gray
Gentiana affinis var. forwoodii (A.Gray) Kusn.
Gentiana affinis var. major A.Nelson & J.F.Macbr.
Gentiana affinis var. parvidentata Kusn.
Gentiana affinis ssp. rusbyi (Greene ex Kusn.) Halda
Gentiana bigelowii A.Gray
Gentiana forwoodii A.Gray
Gentiana interrupta Greene
Gentiana rusbyi Greene ex Kusn.
Pneumonanthe affinis (Griseb.) Greene
Pneumonanthe bigelowii (A.Gray) Greene
Pneumonanthe forwoodii (A.Gray) Greene
Pneumonanthe interrupta (Greene) Greene
Pneumonanthe rusbyi (Greene ex Kusn.) Greene
Territory7 Northern America
     70 Subarctic America (NWT Northwest Territories)
     71 Western Canada (ABT Alberta, BRC British Columbia, MAN Manitoba, SAS Saskatchewan)
     73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming)
     74 North-Central U.S.A. (MIN Minnesota, NDA North Dakota, SDA South Dakota)
     76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah)
     77 South-Central U.S.A. (NWM New Mexico, TEX Texas)
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(c) 1990-2025 RNDr. Pavel Slabý