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orange agoseris

Scientific Name: Agoseris aurantiaca var. purpurea

Family: Asteraceae

Category: Dicot

Growth: Subshrub, Forb/herb

Duration: Perennial

Other Names:

       

Agoseris aurantiaca: Orange Agoseris, Mountain Dandelion

Agoseris aurantiaca, a member of the sunflower family (Asteraceae), is commonly known as orange agoseris or mountain dandelion. It's an attractive perennial wildflower found in various habitats in western North America.

Considerations for Pets and Children

  • This plant possesses sharply pointed leaves.
  • The flower heads have narrow and pointed involucral bracts.
  • The plant produces seeds.

Taxonomy and Nomenclature

  • Scientific Name: Agoseris aurantiaca (Hook.) Greene
  • Common Names: Orange agoseris, mountain dandelion, orange-flower goat-chicory, orange-flowered false dandelion, burnt-orange agoseris, burnt-orange dandelion
  • Family: Asteraceae (Sunflower family or Aster family)
  • Genus: Agoseris
  • Species: aurantiaca
  • Subspecies: var. aurantiaca
  • Synonym: Troximon aurantiacum Hooker

Distribution and Habitat

  • Widespread and common in the western United States.
  • Specifically mentioned locations include: California, Oregon, Washington, Colorado, Idaho, Cascade Canyon, Rocky Mountain National Park, Olympic National Park.
  • Habitat: Grassy slopes to moist meadows from middle to high elevations.

Morphological Characteristics

  • Perennial herb growing to 0.6 meters (2 feet) in height.
  • Flowers from July to August; seeds ripen from August to September.
  • Flower heads are solitary on the scape.
  • Involucral bracts are sub-equal, narrow, and pointed.
  • Corollas are all ligulate, burnt orange in color (though color can vary).
  • Leaves are basal, hairless, lance- to egg-shaped, with or without lobes, and sharply pointed on the tip.
  • Flower stalk is naked.
  • Single orange clustered ray flower on a long green stem with several basal leaves.
  • Erect stems arising from basal leaves to a height ranging from 10-60 cm high.

Quirky Facts

  • The genus name "Agoseris," given by Rafinesque in 1819, is Greek for "goat chicory."
  • "Aurantiaca" is Latin for "orange," but the flower color can vary.
  • It is sometimes referred to as "false dandelion".
  • It is the only orange-flowered Agoseris species.

Interactions with other organisms

  • Leaves can be used as greens, cooked or uncooked.
  • Flowers can be used to make beverages.

Further Resources

  • Discover Life
  • United States Department of Agriculture
  • Wolfram|Alpha