Tansy Mustard, Pinnate Tansy Mustard, Western Tansy Mustard

Descurainia pinnata (Walter) Britton

Brassicaceae (Mustard Family)

▲mature, flowering plant

▲▼ flowers and fruit

▲ stem leaves

▲ young plants

▲ two mature tansy mustard plants in foreground, with flixweed in center background

·         native tansy mustard or pinnate tansy mustard  (p. 153 in Weeds of the Midwest; pp. 206-207, Weeds of the Great Plains—not in Weeds of the Northeast)

o   very closely resembles flixweed, but is a native species

o   but siliques are shorter (0.5-1.0”) and are held out away from and parallel to flowering stem

o   leaves are more ruffly

o   also can be a weed problem, but not as bad as flixweed