Weeds, Insects & Diseases

Shepherd's purse [Capsella bursa-pastoris]



Description

Shepherd's purse is a member of the mustard family, and resembles wild mustard.


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Propagation, emergence and growth

Shepherd's purse is an annual or winter annual that spreads only by seed.Cotyledons oval to ovate, hairless. First true leaves the beginning of a rosette, leaves oval to elliptic, with toothed or smooth edges. Upper surface hairy, base narrows ...


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Distribution

Shepherd's purse is found throughout Canada.


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Recommended solution

  • Target logo

    Target® provides excellent performance on tough broadleaf weeds, such as buckwheat, thistles and Group 2-resistant kochia in wheat, barley and oats.

Description

Shepherd's purse is a member of the mustard family, and resembles wild mustard.

Propagation

Shepherd's purse is an annual or winter annual that spreads only by seed.

Seedling

Cotyledons oval to ovate, hairless. First true leaves the beginning of a rosette, leaves oval to elliptic, with toothed or smooth edges. Upper surface hairy, base narrows into a stalk.

  • Shepherd's purse

Mature Plant

Stems erect, few branches, one to several stems from basal rosette, 2 inches to 4 feet tall at maturity. Smooth to slightly hairy.



Leaves rosette at base, alternate on stems. Shape and size varies, with basal leaves oblong, smooth edges to deeply divided and thoothed edges. Basal leaves narrowing into a stalk. Stem leaves smaller, lanceolate to linear, smooth to finely toothed edges, stalkless, clasping the stems. Leaves smooth to slightly hairy.

  • Shepherd's purse
Root Structure Description:

Taproot, branched.

Flowers Description:

White, small, with four petals in cross shape, on elongated stems at ends of branches. Winter annual forms flower starting early May. Annual forms begin flowering in late-June, continusing to late fall. Seed pod with 2 sections, heart shaped, with the pointed end joining the flower stalk.

Distribution

Shepherd's purse is found throughout Canada.

Similar Species

Shepherd's-purse can easily be distinguished from stinkweed by its' heart-shaped pods, and by having different upper and lower leaves.

Recommended solution

  • Target logo

    Target® provides excellent performance on tough broadleaf weeds, such as buckwheat, thistles and Group 2-resistant kochia in wheat, barley and oats.