Rock Garden Plants
Parthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae 
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FamilyASTERACEAE
Genus speciesParthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae
SynonymsBolophyta alpina Nutt.
Habitatrocky slopes
Altitude1300-1700m
Descriptionleaves linear to oval, white hirsute, entire, 1-3cm, in axils with tuft of white hairs, capitula solitary, discoid, hidden amongst leaves
Size1-2cm
Colorgreenish, whitish
Bloomlate spring, summer
Ca+
Typecarpet
Cultivationsunny, dry, rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed 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)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

ASTERACEAE

Parthenium alpinum (Nutt.) Torr. & A.Gray, Fl. N. Amer. [Torrey & A.Gray] 2(2): 285 (1842)

Basionym:
Bolophyta alpina Nutt., Trans. Amer. Philos. Soc., ser. 2. 7: 348 (1840)

Colorado, Wyoming, New Mexico
73 COL WYO 77 NWM

1300-1700m

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