Shepherd’s purse

Capsella bursa-pastoris (L.) Medicus Brassicaceae (Mustard family)

Life cycle

Erect winter or summer annual.

Leaves

Leaves initially develop from a basal rosette. Basal leaves are stalked and highly variable in shape; young leaves are first rounded and elongated, becoming variously lobed, toothed or wavy. Smaller stem leaves are alternate with smooth to toothed margins and clasping bases.

shepherd's purse rosette
Shepherd’s purse rosette.

Stems

Erect, slender, hairy, up to 2-foottall stems bolt from a basal rosette to flower. Flower stems are usually unbranched with few to no leaves.

Flowers and fruit

White flowers with four small petals are found in terminal clusters. Fruit are distinctly heartshaped to triangular pods found on elongated, unbranched stems.

shepherd's purse fruit shepherd's purse flowering cluster
Shepherd’s purse fruit and flowering cluster.

Reproduction

Seeds.

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