Erysimum capitatum (Douglas ex Hook.) Greene, Fl. Francisc. 269 1891. (syn: Cheiranthus angustatus Greene; Cheiranthus asper Cham. & Schltdl.; Cheiranthus elatus (Nutt.) Greene; Cheiranthus wheeleri (Rothr.) Greene; Cheirinia elata (Nutt.) Rydb.; Cheirinia wheeleri (Rothr.) Rydb.; Erysimum arenicola var. torulosum (Piper) C.L.Hitchc.; Erysimum arkansanum var. angustifolium Scheele; Erysimum arkansanum var. latifolium Scheele; Erysimum arkansanum var. medium Scheele; Erysimum asperum var. arkansanum (Nutt. ex Torr. & A.Gray) A.Gray; Erysimum asperum var. bealianum Jeps.; Erysimum asperum var. capitatum (Douglas) B.Boivin; Erysimum asperum subsp. capitatum (Douglas) B.L.Turner; Erysimum asperum var. elatum (Nutt.) Torr.; Erysimum asperum var. lompocense (Rossbach) B.L.Turner; Erysimum asperum var. stellatum J.T.Howell; Erysimum capitatum var. angustatum (Greene) Rossbach; Erysimum capitatum var. bealianum (Jeps.) Rossbach; Erysimum capitatum var. lompocense (Rossbach) Kartesz; Erysimum capitatum f. pallidum D.R.Hunt; Erysimum capitatum var. stellatum (J.T.Howell) Twisselm.; Erysimum capitatum var. washoense Rossbach; Erysimum elatum Nutt.; Erysimum greenei Polatschek; Erysimum insulare var. angustatum (Greene) Jeps.; Erysimum macradenium J.Gay; Erysimum moniliforme Eastw.; Erysimum suffrutescens var. lompocense Rossbach; Erysimum tilimii J.Gay; Erysimum torulosum Piper; Erysimum wheeleri Rothr.);
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U.S.A. to Mexico: Arizona, Arkansas, California, Colorado, Idaho, Illinois, Indiana, Iowa, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southwest, Missouri, Nevada, New Mexico, Ohio, Oklahoma, Oregon, Tennessee, Texas, Washington as per POWO;
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Erysimum capitatum from UCBG-GS14072021-3: 3 images.

Erysimum capitatum (Douglas ex Hooker) Greene

North American species with oblanceolate to linear leaves, with usually 2-4 rayed hairs, orange flowers in racemes condensed in flowering stage but elongated in fruiting. fruits divaricate, usually 4-angled to slightly flattened, seeds winged.

Clicked from University of California Botanical Garden, 22-4-2019


For me the ID is correct. I also captured this plant in my camera  in the same campus a few years back !



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References: POWO  Catalogue of Life  The Plant List Ver.1.1  IPNI  Wikipedia
https://www.wildflower.org/plants/result.php?id_plant=erca14
https://calscape.org/Erysimum-capitatum-()

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