| Family | PLANTAGINACEAE |
| Genus species | Penstemon thurberi Torr. sect. Ambigui |
| Bibliography | Pacif. Railr. Rep. Parke, Bot. 7(3): 15 (1856) |
| Native Range | sw. & sc. USA to n. Mexico |
| Primary Biome | Subtropical |
| Habitat | rocky slopes |
| Altitude | 500-1200m |
| Description | stems glabrous, leaves 10-20 pairs, at base tapered, glabrous or on margins scabrous, acuminate to mucronate, thyrsus 15cm, corolla infundibuliform, 1-3cm, |
| Size | 20-40cm |
| Color | lavender, violet |
| Bloom | spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Synonyms | Leiostemon thurberi (Torr.) Greene Penstemon ambiguus var. thurberi (Torr.) A.Gray Penstemon scoparius A.Nelson Penstemon thurberi var. anestius Reveal & Beatley |
| Territory | 7 Northern America 76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXE Mexico Northeast, MXN Mexico Northwest) |