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This is another lovely spring wildflower of the woodlands. Purple Cress is similar to Cardamine bulbosa (Spring Cress), except that the latter has flowers with white petals and green sepals. Spring Cress also has a glabrous central stem, while Purple Cress has a hairy stem. In contrast to Dentaria spp. (Toothworts) and many other Cardamine spp. (Bitter Cress species), both of these wildflowers lack compound leaves that are pinnately or palmately divided. Another species of the Mustard family, Iodanthus pinnatifidus (Purple Rocket), produces pale purple flowers on long racemes in damp wooded areas. However, Purple Rocket is a larger plant that blooms later in the year (late spring to mid-summer). Other common names of Cardamine douglassii are Purple Spring Cress and Northern Bitter Cress.


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© John Hilty

Source: Illinois Wildflowers

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