Erysimum inconspicuum (Small-flowered Wallflower)
|Also known as:|
|Life cycle:||biennial, short-lived perennial|
|Habitat:||part shade, sun; dry prairies, railroads, roadsides, river banks, woodland edges|
|Bloom season:||May - August|
|Plant height:||6 to 30 inches|
|Wetland Indicator Status:||none|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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Elongating clusters of stalked flowers at the ends of stems arising from leaf axils in the upper plant and at the top of the stem. Flowers are yellow, about 1/8 inch across with 4 rounded petals and 6 stamens.
Leaves and stems:
Leaves are up to 2½ inches long and to 1/3 inch wide, linear or widest above the middle, pointed at the tip, toothless or with a few widely spaced teeth. Basal leaves, which wither away by flowering time, gradually taper at the base. Upper leaves are stalkless.
Small-flowered Wallflower is distinguished from other yellow mustards that do not have lobed or divided leaves by its tiny flowers, very narrow leaves, and appressed hairs.
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Photos courtesy Peter M. Dziuk taken at Iron Horse Prairie SNA, Dodge County.
Have you seen this plant in Minnesota, or have any other comments about it?