Higher classification Wallflowers | Rank Species | |
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Similar Wallflowers, Cabbage family, Erysimum odoratum, Erysimum crepidifolium, Erysimum hieraciifolium | ||
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Erysimum repandum is a species of wallflower known by several common names, including spreading wallflower, spreading treacle-mustard, and bushy wallflower.
It is native to Eurasia but it is known in many other parts of the world as an introduced species and a common roadside weed.
This is an annual herb growing up to about half a meter high. The leaves at the base of the stem are widely lance-shaped, bumpy or toothed along the edges, and up to 15 centimeters long. The leaves farther up the stem are shorter, narrower, and more shallowly lobed or unlobed. The top of the stem is occupied by a raceme inflorescence of many yellow flowers. The fruit is a silique up to 10 centimeters long.
References
Erysimum repandum Wikipedia(Text) CC BY-SA