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Weed Identification in Christmas Trees

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Shepherd's purse - Capsella bursa-pastoris (L.) Medicus
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Shepard's purse fruit
Shepherd's purse fruit.
Shepard's purse rosette
Sheherd's purse rosette.
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 to wavy. Smaller stem leaves are alternate with smooth to toothed margins and clasping bases.

Stems: Erect, slender, hairy, up to 2-foot-tall 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 heart-shaped to triangular pods found on elongated, unbranched stems.

Reproduction: Seeds.
Shepherd's purse seedhead
Shepard's purse seedhead.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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02/08/08