XErysimum asperum - Western WallflowerX
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Western Wallflower -or- Pretty Wallflower -or- Big Wallflower (Erysimum asperum), family Brassicaceae (Mustard)
This is a pretty wallflower, one of 22 species in the U.S. and 180 species worldwide. Many are native to North America, as well as Asia and Europe. The plant family Brassicaceae offers many edible foods such as broccoli, cabbage, and brussels sprouts. Yet there is no mention of this species in such websites as Plants For a Future, or Native American Ethnobotany, of uses by Native American tribes or other cultures, of the species for food or medicine. This species is quite variable. They can be biennial or perennial. Weber mentions that asperum hybridizes with capitatum along the base of the foothills of the Rocky Mountains - which is where we saw this specimen. The two species can be so closely linked that asperum and capitatum are often synonyms for one another.
Flower -
Plant location: Seen hiking in a Boulder County Open Space, Colorado on May 18, 2009. Found in the following United States: AK, CO, IA, ID, IL, KS, MN, MO, MT, ND, NE, NM, OK, SD, TX, WY, and almost all of Canada.Plant -
Bloom season: March through August according to the Colorado State University Extension website, and zones plains to subalpine - open areas, slopes, meadows, valleys at 4,500 to 12,500 feet elevation.Foliage -
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