XErysimum repandum - Spreading WallflowerX
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Spreading Wallflower (Erysimum repandum), family Brassicaceae (Mustard)
Wallflower species can be challenging to identify. At first glance they may look the same but a closer inspection yields interesting distinctions. This plant displays a number of characteristics (see Weber's plant key in Colorado Flora of the Eastern Slope) that pinpoint this species. The plants are low rather than tall with the stems (pedicels) nearly the same thickness as the siliques (those long green stem-looking structures pushing off from the stems). Notice that the siliques are quite long (widely spreading from the stem). The pedicels (stems) of the plant are also spaced rather far apart from one another. Click on the plant frame in our thumbnail for the best view of these characteristics. The foliage of the species is sinuate (wavy) at the basal area. This is not clearly shown in our example but can be seen when we crop in closely in our high resolution copy of the photograph. Finally, the siliques of the plant are green and fairly glabrous (smooth rather than hairy). Per WIKIPEDIA the plants are native to Eurasia but it is known in many other parts of the world as an introduced species and a common roadside weed. We think it quite pretty, not a condition we commonly consider in weeds :). The plants are annual herbs with a total of about 22 species in the genus.
See the other species in the genus Erysimum that we have on the website: Sanddune Wallflower - Western Wallflower
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Plant location: Sighted in the Rocky Mountain National Park on July 17, 2008. There are a great many uses by Native American tribes of other species in this genus. Per the website Plants for a Future is this about this specific species: 'The plant is used in Spain as an antiscorbutic. The seeds are used in the treatment of fevers.' End quote.Plant -
Bloom season: May to August.Foliage -
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