Family | PLANTAGINACEAE |
Genus species | Penstemon retrorsus Payson sect. Caespitosi |
Bibliography | Contr. U.S. Natl. Herb. 20: 373 (1920) |
Native Range | Colorado |
Primary Biome | Temperate |
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 |
Cultivation | sunny 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 | 7 Northern America 73 Northwestern U.S.A. (COL Colorado) |