Rock Garden Plants
Arabis  williamsii (Rollins) Dorn   
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FamilyBRASSICACEAE
Genus species var.Arabis  williamsii (Rollins) Dorn 
SynonymsBoechera williamsii (Rollins) Dorn
Territory Northwestern U.S.A.IdahoMontanaWyoming
rocks and scree
Altitude2300-2800m
Description stems glabrous, lower leaves oblanceolate, entire, petiolate, sparsely hirsute, stem leaves 6-11, glabrous, raceme 5-17-flowered, sepals glabrous, petals 3-4mm long
Size7-20cm
Colorwhite
Bloomlate spring, summer
Ca
Typetuft
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 fall; cuttings in late summer
BibliographyFlora of North America www.eFloras.org
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý