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Weed Seed: Lepidium appelianum (Globe-pod hoary cress)

Family

Brassicaceae

Synonyms

Cardaria pubescens

Common Name

Globe-pod hoary cress

Regulation

Primary Noxious, Class 2 in the Canadian Weed Seeds Order, 2016 under the Seeds Act.

Distribution

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

Worldwide: Native to central Asia and introduced in North America (Canada and the United States) and South America (Argentina) (USDA-ARS 2016Footnote 2). In the United States, it is mostly found in the western and midwestern states (Francis and Warwick 2008Footnote 3).

Duration of life cycle

Perennial

Seed/Fruit type

Seed

Seed identification features

Size

Shape

Surface Texture

Colour

Other Features

Habitat and Crop Association

Cultivated fields, gardens, pastures, feedlots, grasslands, orchards, roadsides, railway lines and other disturbed areas (Darbyshire 2003Footnote 4, Zouhar 2004Footnote 5). A weed of pastures and alfalfa and clover fields in Canada (Francis and Warwick 2008Footnote 3).

General Information

Contaminated alfalfa seed or horse feed was the probable introduction route for globe-pod hoary cress into North America in the early 1900s (Francis and Warwick 2008Footnote 3).

Similar species

Lens-pod hoary cress (Lepidium chalepense)

Heart-pod hoary cress (Lepidium draba subsp. draba)

Photos

Globe-pod hoary cress (Lepidium appelianum) seeds and pod
Globe-pod hoary cress (Lepidium appelianum) seed
Globe-pod hoary cress (Lepidium appelianum) seed, hilum view
Globe-pod hoary cress (Lepidium appelianum) seed, close-up of the hilum
Globe-pod hoary cress (Lepidium appelianum) seed, cross-section
Globe-pod hoary cress (Lepidium appelianum) seed

Similar species

Similar species: Lens-pod hoary cress (Lepidium chalepense) seeds and pod
Similar species: Lens-pod hoary cress (Lepidium chalepense) seed
Similar species: Heart-pod hoary cress (Lepidium draba subsp. draba) pod and seeds
Similar species: Heart-pod hoary cress (Lepidium draba subsp. draba) seed
Similar species: Comparison of Lepidium spp. seed cross-sections
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