field pennycress

Field pennycress – Thlaspi arvense

Thlaspi arvense L.

Brassicaceae (Mustard family)

MI Status

Non-native

Life cycle

Erect winter or summer annual.

Leaves

Leaves initially develop from a basal rosette. Lower leaves are oval to spatula-shaped with wavy to slightly toothed margins, rounded tips and distinct petioles. Upper leaves are alternate with toothed to smooth margins and clasping bases. Basal leaves fall off before maturity.

Stems

Erect, mostly 2-foot-tall stems with varied branching bolt from a basal
rosette to flower.

Flowers and fruit

White flowers with four small petals are found in terminal clusters. Fruit are flat, round to oval, distinctly winged, 1/2-inch-wide pods with a prominent notch at the tip.

Reproduction

Seeds.

Field pennycress plant
Field pennycress plant
Field pennycress rosette
Field pennycress rosette
Field pennycress flowers
Field pennycress flowers
Field pennycress fruit
Field pennycress fruit

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