Rock Garden Plants
Horkelia  tridentata Torrey   
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FamilyROSACEAE
Genus species var.Horkelia  tridentata Torrey 
SynonymsPotentilla tilingii (Regel) Greene
Territory Northwestern U.S.A.Southwestern U.S.A.CaliforniaOregon
thickets and steppes
Altitude300-2500m
Description basal leaves flat, sericeous to lanate, pinnate, segments 2-5-pairs, elliptic to cuneate, coarsely triangular-dentate, inflorescence dense, flowers in capitate cluster, petals 3mm
Size10-40cm
Colorwhite, pinkish
Bloomlate spring, summer
Ca
Typerosette, tuft
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 18-21°C
cuttings in late summer and in fall
BibliographyFlora of North America www.eFloras.org
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý