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Calystegia sepium (L.) R. Br.

Overview
General Information
ID Info
Similar Species
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Aperçu
Renseignements Généraux
Informations D'identification
Espèces Semblables
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Family :

Famille :

Convolvulaceae

Synonym(s) :

Synonyme(s) :

Convolvulus sepium

Common Name(s) :

Nom(s) commun(s) :

Hedge bindweed

Hedge bindweed (Calystegia sepium) seeds

  • Hedge bindweed (Calystegia sepium) seeds

  • Hedge bindweed (Calystegia sepium) seeds

  • Hedge bindweed (Calystegia sepium) seed

  • Hedge bindweed (Calystegia sepium) capsule and seeds

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Overview

Aperçu

Regulation :

Remarques Réglementation:

  • Quarantine lists of countries e.g. Mexico *may be updated without notice

Regulation Notes:

On quarantine lists of countries e.g. Mexico*.

*Quarantine lists of countries may be updated without notice.

Distribution :

Répartition :

This species is native to Africa, temperate Asia, Australasia, Europe, North and South America (USDA-ARS 2017). Widespread in the U.S. (USDA-NRCS 2017).

Habitat and Crop Association :

Habitat et Cultures Associées :

This species grows in prairies, thickets, woodland borders, floodplain areas, cropland borders, abandoned fields, fence rows, roadsides and urban waste areas (Hilty 2017).

Economic Use, cultivation area, and Weed Association :

Utilisation économique, zone de culture et association de mauvaises herbes :

Duration of Life Cycle :

Durée du cycle vital:

Perennial

Dispersal Unit Type :

Type d’unité de dispersion :

Seed

General Information

RENSEIGNEMENTS GÉNÉRAUX

Hedge bindweed readily climbs fences as a result of its twining stems. It is known to produce chemicals that inhibit the growth of other plants (Hilty 2017).

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Calystegia sepium infestation (John Cardina, The Ohio State University, Bugwood.org)

Identification

Identification

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  • Seed

    Size

    • Seed length: 3.7 – 5.2 mm (average: 4.6 mm); width: 3.2 – 4.1 mm (average: 3.7 mm)

    Shape

    • Seed is sectoroid-shaped, and slightly trigonous with two flat sides and a curved side in profile; the two flat sides form a ridge where they meet

    Surface Texture

    • Seed surface is roughened with small granules, wrinkles and papillate tubercles

    Colour

    • Seed is dull, reddish-brown to dark brown; the hilum is generally an orange colour

    Other Features

    • Hilum is D-shaped in a flat area at one end of the seed, offset to one side

    Hedge bindweed (Calystegia sepium) seeds

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Identification Tips

CONSEILS POUR L’IDENTIFICATION

Additional Botany Information

AUTRES RENSEIGNEMENTS BOTANIQUES

Calystegia sepium flowers (Brian Sugerman, The Ohio State University, Bugwood.org)

Similar Species

ESPÈCES SEMBLABLES

Similar species are based on a study of seed morphology of various species, and those with similar dispersal units are identified. The study is limited by physical specimen and literature availability at the time of examination, and possibly impacted by the subjectivity of the authors based on their knowledge and experience. Providing similar species information for seed identification is to make users aware of similarities that could possibly result in misidentification.

Convolvulus arvensis (field bindweed)

Convolvulus arvensis seeds are a similar sectoroid shape, reddish-brown colour with a flat hilum area at one end.

Convolvulus arvensis seeds are generally smaller than hedge bindweed (average length: 4.1 mm; average width: 3.1 mm) with a surface texture that is more roughened with warty tubercles and irregular ridges. The hilum is smaller and an oval shape rather than a D-shape seen in hedge bindweed.

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Reference(s)

Référence(s)

Global Biodiversity Information Facility (GBIF) Secretariat. 2022. https://doi.org/10.15468/39omei Accessed via https://www.gbif.org/species/2928441 Accessed December 29, 2022.

Hilty, D.J. 2017. Illinois Wild Flowers, http://www.illinoiswildflowers.info Accessed April 25, 2017.

U.S. Department of Agriculture-Agricultural Research Services (USDA-ARS). 2017. Germplasm Resources Information Network (GRIN), https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysearch Accessed April 25, 2017.

U.S. Department of Agriculture-Natural Resources Conservation Service (USDA-NRCS). 2017. The PLANTS Database. National Plant Data Team, Greensboro, NC USA. https://plants.usda.gov/home Accessed April 25, 2017.

U.S. Department of Agriculture-Natural Resources Conservation Service (USDA-NRCS). 2022. The PLANTS Database. National Plant Data Team, Greensboro, NC USA. http://plants.usda.gov Accessed December 29, 2022.

Author(s)

AUTEUR(S)

Jennifer Neudorf, Angela Salzl, Ruojing Wang, Karen Castro, Katrina Entwistle

Canadian Food Inspection Agency