| Family | PLANTAGINACEAE |
| Genus species | Penstemon triphyllus Douglas ex Lindl. sect. Saccanthera |
| Habitat | rocks |
| Altitude | 300-1800m |
| Description | leaves all on stem, to 5cm long, linear to narrowly linear-elliptic, irregularly sharply dentate, calyx viscid, lobes lanceolate, acuminate, flowers 12-15mm long |
| Size | 25-80cm |
| Color | blue, purplish violet |
| Bloom | 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 |
| Territory |
Northern America
Northwestern U.S.A. (Idaho , Oregon , Washington) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | PLANTAGINACEAE
triphyllus infernalis N.H.Holmgren, Brittonia 70: 125 (2017)
|