Rock Garden Plants
Draba ruaxes Payson & H.St.John  
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FamilyBRASSICACEAE
Genus speciesDraba ruaxes Payson & H.St.John 
BibliographyProc. Biol. Soc. Washington 43: 117 (1930)
Native RangeAlaska to Washington
Primary BiomeSubalpine
Habitatrocks and scree
Altitude500-2400m
Descriptionlower leaves subsessile, oblanceolate, 3-10mm, pubescent, ciliate, stem leaves 0, flowers 4-10 in raceme, sepals ovate, petals obovate, 4-6mm, silicles elliptic, pubescent
Size2-6cm
Colorbright yellow
Bloomlate spring, summer
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
rosette cuttings in late summer
SynonymsDraba ventosa var. ruaxes (Payson & H.St.John) C.L.Hitchc.
Territory7 Northern America
     70 Subarctic America (ASK Alaska, YUK Yukon)
     71 Western Canada (ABT Alberta, BRC British Columbia)
     73 Northwestern U.S.A. (WAS Washington)
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(c) 1990-2025 RNDr. Pavel Slabý