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Weed Seed: Sisymbrium loeselii (Tall hedge mustard)

Family

Brassicaceae

Common Name

Tall hedge mustard

Regulation

Secondary Noxious, Class 3 in the Canadian Weed Seeds Order, 2016 under the Seeds Act.

Distribution

Canadian: Occurs in AB, BC, MB, NB, NT, ON, QC, SK (Brouillet et al. 2016Footnote 1).

Worldwide: Native to eastern Europe and temperate Asia and introduced in North America, western and northern Europe and Japan (USDA-ARS 2016Footnote 2). In the United States, found in many states except for some in the south (USDA-NRCS 2016Footnote 3).

Duration of life cycle

Annual or Winter annual

Seed or fruit type

Seed

Identification features

Size

Shape

Surface Texture

Colour

Other Features

Habitat and Crop Association

Cultivated fields, old fields, field margins, pastures, stream banks, vacant lots, roadsides, railway lines and disturbed areas (Frankton and Mulligan 1993Footnote 4, FNA 1993+Footnote 5, Darbyshire 2003Footnote 6).

General Information

Tall hedge mustard's ability to produce chemicals capable of inhibiting germination and growth of nearby plants gives it a competitive edge in rangelands (Bainard et al. 2009Footnote 7).

Similar species

Tumble mustard (Sisymbrium altissimum)

Photos

Tall hedge mustard (Sisymbrium loeselii) seeds
Tall hedge mustard (Sisymbrium loeselii) seed

Similar species

Similar species: Tumble mustard (Sisymbrium altissimum) seeds
Similar species: Tumble mustard (Sisymbrium altissimum) seed
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