Erysimum capitatum (Douglas ex Hook.) Greene
Sand-dune Wallflower, Western Wallflower, Prairie Rocket
Brassicaceae (Mustard Family)
USDA Symbol: ERCA14
An extremely variable species, though usually a clumped plant with densely crowded clusters of orange, yellow, orange-brown or purplish-maroon flowers atop each minimally-branched stem. The narrow leaves and stems of this biennial to short-lived perennial are hairy. The seedpods stand upright.
From the Image Gallery
Bloom InformationBloom Color: Red , Orange , Yellow
Bloom Time: May , Jun , Jul
DistributionUSA: AK , AR , AZ , CA , CO , IA , ID , IL , IN , KS , MI , MN , MO , MT , ND , NE , NM , NV , NY , OH , OK , OR , SD , TN , TX , UT , VA , WA , WI , WV , WY
Native Distribution: VA & OH to s.w. Canada, s. to TN, TX & CA; much more common westward
Native Habitat: Plains; foothills; high elevation coniferous forests
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Soil Description: Dry, well-drained soils.
Conditions Comments: Although it is a biennial, western wallflower will usually produce the flowers the first year. Western wallflower is extremely variable in size and flower color. It is similar to the cultivated wallflower (Cheiranthus spp.) and is equally showy in a wildflower garden.
PropagationDescription: Untreated seed planted 1/4 deep will germinate readily. Plant in late summer or early fall.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Tohono Chul Park, Inc. - Tucson, AZ
Native Seed Network - Corvallis, OR
BibliographyBibref 1207 - Earth Medicine, Earth Food (1990) Michael A. Weiner
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.
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Additional resourcesUSDA: Find Erysimum capitatum in USDA Plants
FNA: Find Erysimum capitatum in the Flora of North America (if available)
Google: Search Google for Erysimum capitatum
MetadataRecord Modified: 2015-12-09
Research By: TWC Staff