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Erysimum capitatum var. capitatum

Erysimum capitatum var. capitatum   (redirected from: Erysimum wheeleri Rothrock)
Family: Brassicaceae
Sand-Dune Wallflower, more...sanddune wallflower
[Cheiranthus angustatus Greene, moreCheiranthus pacificus E. Sheld., Cheirinia aspera (Nutt.) Britt., Erysimum arkansanum Nutt., Erysimum asperum var. arkansanum (Nutt.) Gray, Erysimum asperum var. bealianum Jeps., Erysimum asperum var. capitatum (Dougl. ex Hook.) Boivin, Erysimum capitatum var. stellatum (J.T. Howell) Twisselmann, Erysimum capitatum var. washoense G. Rossb., Erysimum elatum Nutt., Erysimum moniliforme Eastw., Erysimum tilimi J. Gay, Erysimum wheeleri Rothrock]
Erysimum capitatum var. capitatum image
Max Licher
  • FNA
  • Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Proximal leaves with mostly 3(-7)-rayed trichomes adaxially. Flowers: petals usually orange, sometimes orange-yellow or yellow. Fruits usually latiseptate, rarely 4-angled. Seeds 2-4 × (0.8-)1-2 mm; winged at least distally or, rarely, wing rudimentary. 2n = 36.

Flowering (Jan-)Mar-Sep. Hillsides, open slopes, valley bottoms, alpine areas, deserts, woodlands, sandy mesas, chaparral clearings; of conservation concern; 0-1700 m; Ariz., Ark., Calif., Idaho, Ill., Ind., Iowa, Mo., Nev., Ohio, Okla., Oreg., Tenn., Tex., Wash.; Mexico (Durango, San Luis Potosí).

Although its overall distribution is extensive, var. capitatum has been collected only sporadically outside the main range in western Idaho, western Nevada, and the Pacific states. There is some local differentiation in California that has been recognized formally. For example, some populations in the Mohave desert in Kern, Los Angeles, and San Bernardino counties, as well as disjunct ones in eastern San Luis Obispo County, differ from typical var. capitatum by having yellow petals, fruits to 3.3 mm wide, and seeds to 4 × 2 mm; these were recognized by G. B. Rossbach (1958) and R. C. Rollins (1993) as var. bealianum. Variety angustatum, which is highly localized in Contra Costa County and was recognized by both Rossbach and Rollins, differs from typical var. capitatum by having elongated (versus not elongated) woody caudices, 4-angled (versus latiseptate) fruits, and much-branched (versus moderately-branched or simple) fruiting racemes.

Erysimum capitatum var. capitatum
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Erysimum capitatum var. capitatum image
Sue Carnahan
Erysimum capitatum var. capitatum image
Gregory Gust
Erysimum capitatum var. capitatum image
Sue Carnahan
Erysimum capitatum var. capitatum image
Gregory Gust
Erysimum capitatum var. capitatum image
Max Licher
Erysimum capitatum var. capitatum image
Gregory Gust
Erysimum capitatum var. capitatum image
Cecelia Alexander
Erysimum capitatum var. capitatum image
Cecelia Alexander
Erysimum capitatum var. capitatum image
Cecelia Alexander
Erysimum capitatum var. capitatum image
Cecelia Alexander
Erysimum capitatum var. capitatum image
Cecelia Alexander
Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
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Erysimum capitatum var. capitatum image
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