Rock Garden Plants
Penstemon angustifolius Nutt. ex Pursh sect. Coerulei 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon angustifolius Nutt. ex Pursh sect. Coerulei
BibliographyFl. Amer. Sept. 2: 738 (1813)
Native Rangew. & c. USA
Primary BiomeTemperate
Habitatsteppes
Altitude600-2600m
Descriptionleaves entire, carnose, mainly on floral stem, linear to oblanceolate, 3-10cm long, flowers 15-20mm in compact thyrsoid inflorescence, staminodium apically curvate
Size10-45cm
Colorblue, pink
Bloomsummer
Ca+
Typeperennial
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
division in spring; cuttings in late summer
SynonymsChelone angustifolia (Nutt. ex Pursh) Steud.
Chelone caerulea Spreng.
Penstemon caeruleus Nutt.
Territory7 Northern America
     73 Northwestern U.S.A. (COL Colorado, MNT Montana, WYO Wyoming)
     74 North-Central U.S.A. (KAN Kansas, NDA North Dakota, NEB Nebraska, OKL Oklahoma, SDA South Dakota)
     76 Southwestern U.S.A. (ARI Arizona, UTA Utah)
     77 South-Central U.S.A. (NWM New Mexico)
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(c) 1990-2025 RNDr. Pavel Slabý