Pinnate tansy-mustard

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Pinnate tansy-mustard fruit

Pinnate tansy-mustard leaf

Pinnate tansy-mustard

Pinnate tansy-mustard

Pinnate tansy-mustard

Pinnate tansy-mustard

Pinnate tansy-mustard

Pinnate tansy-mustard leaf

Pinnate tansy-mustard leaf

Pinnate tansy-mustard leaf

Pinnate tansy-mustard

Morphology

Stem

Erect, simple or branched, pubescent to canescent with branched glandular and eglandular hairs.

Leaves

Basal and cauline, alternate. Basal leaves: petiole .2 to 1.6 inch; blade ovate to oblong or oblanceolate in outline, .4 to 6 inches, margins 1-2-pinnately lobed, lobes entire or dentate, surfaces sparsely to densely pubescent. Cauline leaves: petiole present or absent; blade usually 1-pinnately lobed, surfaces pubescent.

Inflorescence

Racemes, terminal, usually with glandular hairs.

Flower

Sepals 4, oblong to elliptic, 1/25 to 1/10 inch; petals 4, yellow, oblanceolate, 1/25 to 1/8 inch; stamens 6, 4 long stamens barely exserted, 2 short stamens included.

Fruit

Fruiting pedicels spreading to ascending, straight or slightly recurved. Siliques ascending to erect, clavate, 1/4 to 2/5 inch; seeds reddish brown, in 2 rows in each locule, oblong.

Ecology

Habitat

Roadsides, pastures, disturbed sites in prairie and woodlands, and waste places

Distribution

Occurs statewide

Practical Information

Uses

Native Americans used the seeds for food and the leaves as potherbs.

Additional Notes