Family | ASTERACEAE |
Genus species | Parthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae |
Synonyms | Bolophyta alpina Nutt. |
Habitat | rocky slopes |
Altitude | 1300-1700m |
Description | leaves linear to oval, white hirsute, entire, 1-3cm, in axils with tuft of white hairs, capitula solitary, discoid, hidden amongst leaves |
Size | 1-2cm |
Color | greenish, whitish |
Bloom | late spring, summer |
Ca | + |
Type | carpet |
Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C division in spring; cuttings in late summer |
Territory |
Northern America
Northwestern U.S.A. (Colorado , Wyoming ) South-Central U.S.A. (New Mexico) |
Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
Comments | ASTERACEAE
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