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cutleaf teasel

Scientific Name: Dipsacus laciniatus

Family: Dipsacaceae

Category: Dicot

Growth: Forb/herb

Duration: Biennial

Other Names:

       

Cutleaf Teasel (Dipsacus laciniatus)

Cutleaf teasel, scientifically known as Dipsacus laciniatus, is a flowering plant belonging to the honeysuckle family (Dipsacaceae). It is also commonly referred to as cut-leaved teasel or cut-leaf teasel.

Considerations for Pets

  • The plant has prickly bracts on its flower spikes.

Considerations for Children

  • The plant has prickly bracts on its flower spikes.

Taxonomy and Nomenclature

  • Scientific Name: Dipsacus laciniatus L.
  • Family: Dipsacaceae (Teasel Family)
  • Common Names: Cutleaf teasel, cut-leaved teasel, cut-leaf teasel
  • Related Species: Fuller's Teasel (D. sativus), Common Teasel (D. fullonum)

Distribution and Habitat

  • Native to Europe and Asia.
  • Found in various locations, including roadside ditches and wetlands.
  • In North America, it may be found in disturbed areas.
  • While common teasel is present in all western states, cutleaf teasel is primarily found in Oregon and California, though it is spreading to other locations like Ohio.

Ecological Role

  • Considered an invasive species in many regions.
  • Poses a significant threat to native species, especially along roadsides and in pastures.
  • Can form large, dense stands that choke out other vegetation.

Morphological Characteristics

  • Monocarpic perennial (though often called a biennial)
  • Grows as a basal rosette for at least one year before sending up a flowering stalk.
  • The flowering stalk can reach up to 6-8 feet tall.
  • Leaves are opposite, with basal leaves being irregularly cleft.
  • Seedlings have toothed margins similar to common teasel.
  • Flowers are tiny and white, arranged in a thick cylindrical spike, typically 2 to 4 inches long.
  • Has a thick, well-developed taproot.

Quirky Facts

  • Cutleaf teasel was introduced to the United States from France in the 1840s for use in the textile industry.
  • The plant's seedheads are distinctive and well-known.

Interactions with Other Organisms

  • Morphological injury can be induced by the eriophyid mite Leipothrix dipsacivagus.

Further Information

  • USDA Symbol: DILA4
  • Images are available from Chris Evans at the University of Illinois.