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Weed Seed: Solanum carolinense (Horse nettle)

Family

Solanaceae

Synonym

Ball nettle

Common Name

Horse nettle

Regulation

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

Distribution

Canadian: Occurs in ON and QC (Brouillet et al. 2016Footnote 1).

Worldwide: Native to eastern North America, from Ontario to northern Mexico, and introduced in Japan and India (Bassett and Munro 1986Footnote 2, USDA-ARS 2016Footnote 3).

Duration of Life Cycle

Perennial

Seed or Fruit Type

Seed

Identification Features

Size

Shape

Surface Texture

Colour

Other Features

Habitat and Crop Association

Cultivated fields, pastures, gardens, nurseries, riverbanks, roadsides and disturbed areas (Bassett and Munro 1986Footnote 2, Darbyshire 2003Footnote 4). Most frequently found in corn and grain fields, and to a lesser extent in pastures, alfalfa, potatoes, soybeans and tomatoes (Bassett and Munro 1986Footnote 2).

General Information

Horse nettle may produce up to 5000 seeds per plant. The seeds are apparently spread through livestock manure and the berries and horizontal roots are spread as a result of harvesting operations (Bassett and Munro 1986Footnote 2, CABI 2016Footnote 5).

Similar Species

Silverleaf nightshade (Solanum elaeagnifolium)

Photos

Horse nettle (Solanum carolinense) seeds
Horse nettle (Solanum carolinense) seed
Horse nettle (Solanum carolinense) seed
Horse nettle (Solanum carolinense) seed

Similar species

Similar species: Silverleaf nightshade (Solanum eleagnifolium) seeds
Similar species: Silverleaf nightshade (Solanum eleagnifolium) seed
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