Rock Garden Plants
Hymenoxys  richardsonii (Hook.) Cockerell  trib. Helenieae 
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FamilyASTERACEAE
Genus species var.Hymenoxys  richardsonii (Hook.) Cockerell  trib. Helenieae
SynonymsPicradenia richardsonii Hook. (basionym)
 Actinea richardsonii var. floribunda (A.Gray) Cory
 Actinella richardsonii (Hook.) Nutt.
Territory Western CanadaNorthwestern U.S.A.North-Central U.S.A.Southwestern U.S.A.South-Central U.S.A.
dry, rocky slopes
Altitude1000-3400m
Description leaves entire to pinnatipartite, segments long, linear, capitula 1-3, involucre 2-seriate, disc 7-17mm across, ligules 8-13, 7-15mm long
Size7-35cm
Coloryellow
Bloomsummer
Ca
Typesubshrub
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
cuttings in late spring and late summer
BibliographyFlora of North America www.eFloras.org
Compositae Checklist compositae.landcareresearch.co.nz
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý