Family | PLANTAGINACEAE |
Genus species | Penstemon davidsonii Greene sect. Erianthera |
Habitat | rocks |
Altitude | 30-3700m |
Description | adpressed pubescent, leaves ovate, glabrous, shortly petiolate, inflorescence compact, few flowered raceme, flowers 20-25mm long, outside glabrous |
Size | 5-10cm |
Color | reddish violet |
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
Western Canada (British Columbia ) Northwestern U.S.A. (Oregon , Washington ) Southwestern U.S.A. (California , Nevada) |
Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
Comments | PLANTAGINACEAE
davidsonii menziesii D.D.Keck, Brittonia 8: 247 (1957)
davidsonii praeteritus Cronquist, Leafl. W. Bot. 10: 129 (1964)
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