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slender hawksbeard

Scientific Name: Crepis atribarba ssp. atribarba

Family: Asteraceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Slender Hawksbeard (Crepis atribarba)

Crepis atribarba, commonly known as slender hawksbeard, is a flowering plant belonging to the daisy family. It is also sometimes referred to as dark hawksbeard.

Considerations for Pets

  • Slender Hawksbeard exudes a milky residue when broken, which might be a point of interest for curious pets.

Considerations for Children

  • Slender Hawksbeard exudes a milky residue when broken, which might be a point of interest for children.

Taxonomy and Nomenclature

  • Scientific Name: Crepis atribarba A. Heller
  • Common Names: Slender Hawksbeard, Dark Hawksbeard
  • Family: Asteraceae (Aster family)
  • Genus: Crepis
  • Species: atribarba
  • Rank: Species
  • Subspecies: Crepis atribarba ssp. atribarba, Crepis atribarba ssp. originalis
  • Synonym: Crepis atribarba ssp. originalis is listed as a synonym for Bearded Hawksbeard and Slender Hawksbeard in some records.

Distribution and Habitat

  • Slender Hawksbeard is found in western North America, including areas east of the Cascade Mountains in Oregon and Washington, and from Colorado west to Nevada, and north to Saskatchewan.
  • It has been observed in locations such as Johnson Creek Road, SW of Lake Chelan, WA, and Icicle Creek Rd. near Leavenworth, Chelan Co. WA USA.
  • It grows at elevations ranging from 6,000 to 10,500 feet.

Morphological Characteristics

  • Slender Hawksbeard is a taprooted perennial.
  • It grows up to 70 cm tall.
  • Stems are erect from the base with narrow leaves.
  • Stems are gray, with upper branches having few matted hairs, becoming less hairy.
  • It has numerous yellow flowers.
  • The flowers are described as having sharp-pointed petals.
  • Fruits/Seeds: A yellowish or brownish achene, with slender white hairs at the tip.

Quirky Facts

  • Slender Hawksbeard is sometimes mistaken for dandelions due to its dandelion-like flowers.

Further Information

  • Dave's Garden: A community that shares tips and ideas for gardens, along with seeds and plants.
  • MountainNature.com: Field Guide for the next Millennium.
  • Discover Life: Page about the biology, natural history, ecology, identification and distribution of Crepis atribarba.
  • USDA NRCS PLANTS Database: Information on Tapertip Hawksbeard (Crepis acuminata), which is related.