Desmanthus illinoensis
Mimosa can be confused with native bipinnately compound legumes, especially in the smaller seedlings stages.
Prairie Mimosa or Prairie Bundle Flower, Desmanthus illinoensis (Michx.) MacMill.ex B.L.Robins.&Fern., very similar in appearance to the non-native mimosa tree, is a perennial herb 3 to 6 feet tall with white, powder-puff flowers.