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greater swinecress

Scientific Name: Coronopus squamatus

Family: Brassicaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual, Biennial

Other Names:

       

Greater Swinecress (Coronopus squamatus)

Greater swinecress, also known as swine cress, is an annual or biennial broadleaf plant that belongs to the mustard family. It's known for its low-spreading growth habit and often found in lawns and disturbed areas.

Considerations for Pets

  • Swinecress is often found in lawns.
  • Some consider the plant to have an unpleasant smell.

Scientific Classification

  • Scientific Name: Coronopus squamatus (Forssk.) Asch.
  • Family: Brassicaceae (Mustard Family)
  • Synonyms: Lepidium coronopus syn L squamatum, Cochlearia coronopus, Lepidium coronopus (L.) Al-Shehbaz, Carara coronopus (L.) Medik.

Common Names

  • Greater Swinecress
  • Swine Cress
  • Creeping Wartcress
  • Crowfoot

Distribution and Habitat

  • Native to Europe.
  • Introduced to parts of North America.
  • In New England, specifically collected in Massachusetts and Rhode Island.
  • Found in the Sacramento Valley and San Francisco area.

Ecological Role

  • Considered a weed in some areas of the United States.
  • Spreads quickly and can be a persistent nuisance.

Morphological Characteristics

  • Annual/biennial plant growing up to 0.3 meters (1 foot) tall.
  • Flowers bloom from June to September.
  • Seeds ripen from August to October.
  • Generally low spreading plants with many long, divided leaves. The terminal division of the leaves is larger than the others.

Interactions with Other Organisms

  • Can be controlled with herbicides such as triclopyr and 2,4-D + dicamba + MCPP.

Quirky Facts

  • Some people consider swinecress a nice walkabout nibble and pot herb, often found in lawns during cooler months.
  • Others find its smell unpleasant.

Further Information

  • USDA-NRCS PLANTS Database
  • PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the
  • NIISS
  • Inventory of Canadian Agricultural Weeds (2003)