Rock Garden Plants
Hymenoxys helenioides (Rydb.) Cockerell trib. Helenieae 
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FamilyASTERACEAE
Genus speciesHymenoxys helenioides (Rydb.) Cockerell trib. Helenieae
SynonymsPicradenia helenioides Rydb.
Habitatrocky slopes
Altitude2200-3000m
Descriptionleaves pinnatilobate, lobes 2-5, finely glandular-punctate, glabrous to finely pubescent, 5-15cm long, inflorescence paniculate, disc 10-21mm across, rays 9-11, 8-19mm long
Size20-50cm
Coloryellow
Bloomsummer
Ca
Typesubshrub
Cultivationrock crevices with favourable water regime, eastern slopes
alpine house, poor, drained soil, shading in summer
Propagationseed in spring, barely covered, germ. 1 month, 10-16°C
cuttings in late spring and late summer
Territory Northern America
     Northwestern U.S.A. (Colorado )
     Southwestern U.S.A. (Arizona , Utah)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

ASTERACEAE

Hymenoxys helenioides (Rydb.) Cockerell, Bull. Torrey Bot. Club 31: 481 (1904)

Basionym:
Picradenia helenioides Rydb., Bull. Torrey Bot. Club 28: 21 (1901)

Synonyms:
Actinea helenioides (Rydb.) S.F.Blake
Dugaldia helenioides (Rydb.) A.Nelson

Colorado, Arizona, Utah
73 COL 76 ARI UTA

2200-3000m

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