| Family | PLANTAGINACEAE |
| Genus species | Penstemon caudatus A.Heller sect. Coerulei |
| Bibliography | Minnesota Bot. Stud. 2: 34 (1898) |
| Native Range | wc. & c. USA |
| Primary Biome | Temperate |
| Habitat | sandy grassland |
| Altitude | 1200-1600m |
| Description | stems glabrous, stem leaves 3-8 pairs, ovate or lanceolate, entire, carnose, flowers in compact thyrsus, bracts ovate to lanceolate, corolla 13-20mm |
| Size | 15-60cm |
| Color | blue |
| Bloom | late spring, summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a poor, sandy soil alpine house, sandy soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C division in spring; cuttings in late summer |
| Synonyms | Penstemon angustifolius var. caudatus (A.Heller) Rydb. Penstemon angustifolius ssp. caudatus (A.Heller) D.D.Keck |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, WYO Wyoming) 74 North-Central U.S.A. (KAN Kansas, NEB Nebraska, OKL Oklahoma, SDA South Dakota) 77 South-Central U.S.A. (NWM New Mexico) |