| Family | PLANTAGINACEAE |
| Genus species | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| Synonyms | Chelone angustifolia (Nutt. ex Pursh) Steud. |
| Chelone caerulea Spreng. | |
| Habitat | american prairie |
| Altitude | 600-2600m |
| Description | leaves entire, carnose, mainly on floral stem, linear to oblanceolate, 3-10cm long, flowers 15-20mm in compact thyrsoid inflorescence, staminodium apically curvate |
| Size | 10-45cm |
| Color | blue, pink |
| Bloom | summer |
| Ca | + |
| Type | tuft |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C division in spring; cuttings in late summer |
| Territory |
Northern America
Northwestern U.S.A. (Colorado , Montana , Wyoming ) North-Central U.S.A. (North Dakota , Nebraska , South Dakota ) Southwestern U.S.A. South-Central U.S.A. |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
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| Comments | PLANTAGINACEAE
angustifolius caudatus (A.Heller) Rydb,, Bull. Torrey Bot. Club 33: 151 (1906)
angustifolius dulcis Neese, Great Basin Naturalist 46: 459 (1986)
angustifolius venosus D.D.Keck, J. Wash. Acad. Sci. 29: 490 (1939)
angustifolius vernalensis N.H.Holmgren, Brittonia 31: 229 (1979)
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