Family | PLANTAGINACEAE |
Genus species | Penstemon retrorsus Payson sect. Caespitosi |
Habitat | rocky slopes |
Altitude | 1500-2500m |
Description | cinereous, leaves oblanceolate or spathulate, 8-15mm, flowers 15-20mm in interrupted spike, corolla tubular, staminodium apically densely barbate |
Size | 10-20cm |
Color | blue |
Bloom | summer |
Ca | |
Type | subshrub, carpet |
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. (Colorado) |
Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
Comments | PLANTAGINACEAE
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