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Flaigg, Norman G.
Erysimum capitatum (Dougl. ex Hook.) Greene
Prairie rocket, Sand-dune wallflower, Sanddune wallflower, Western wallflower
Synonyms: Erysimum capitatum var, capitatum, Erysimum asperum, Erysimum elatum, Erysimum arkansanum
USDA Symbol: erca14
USDA Native Status: Native to U.S.
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.
Plant CharacteristicsDuration: Biennial Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: Red , Orange , Yellow
Bloom Time: May , Jun , Jul
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 USDA Native Status: L48(N), AK(N)
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
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Tohono Chul Park, Inc.
- Tucson, AZNative Seed Network
- Corvallis, OR
Recommended Species Lists
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Record Modified: 2008-05-28
Research By: TWC Staff