Rock Garden Plants
Penstemon glaber Pursh sect. Glabri 
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FamilyPLANTAGINACEAE
Genus speciesPenstemon glaber Pursh sect. Glabri
BibliographyFl. Amer. Sept. 2: 738 (1813)
Native Rangewc. USA
Primary BiomeTemperate
Habitatsteppes
Altitude1500-2900m
Descriptionglabrous, bluish, lower leaves oblong-lanceolate, upper leaves ovate, entire, inflorescence elongate, many flowered, flowers 24-35mm long, without lines
Size30-60cm
Colorblue
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
SynonymsPenstemon alpinus f. riparius (A.Nelson) Pennell
Penstemon glaber var. occidentalis A.Gray
Penstemon glaber var. stenosepalus Regel
Penstemon gordonianus A.Gray
Penstemon gordonii Hook.
Penstemon riparius A.Nelson
Territory7 Northern America
     73 Northwestern U.S.A. (MNT Montana, WYO Wyoming)
     74 North-Central U.S.A. (NDA North Dakota, NEB Nebraska, SDA South Dakota)
Picture
Version 10.0
(c) 1990-2025 RNDr. Pavel Slabý