Puneet Varma (Editor)

Cirsium eatonii

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Kingdom
  
Plantae

Family
  
Asteraceae

Genus
  
Cirsium

Order
  
Asterales

Tribe
  
Cynareae

Rank
  
Species

Cirsium eatonii httpsuploadwikimediaorgwikipediacommonsthu

Similar
  
Cirsium douglasii, Cirsium andrewsii, Cirsium andersonii, Cirsium perplexans, Cirsium rhothophilum

Cirsium eatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the aster family.

The species has been found in Idaho, Montana, New Mexico, Wyoming, Nevada, Utah and Colorado.

Description

Cirsium eatonii is an erect herb up to 150 cm (60 inches or 5 feet) tall. Leaves are generally hairless but the entire foliage is covered with many long, white spines. One plant produces several flower heads with pink to purple flowers. The species grows in grasslands, sagebrush steppes, open savannahs, etc.

Varieties

A number of varieties have been identified, which include:

  • Cirsium eatonii var. clokeyi - Clokey thistle, Spring Mountains thistle, white-spine thistle - Nevada
  • Cirsium eatonii var. eatonii - Nevada, Utah
  • Cirsium eatonii var. eriocephalum - alpine thistle, mountain thistle - Colorado, New Mexico, Utah
  • Cirsium eatonii var. hesperium - tall mountain thistle - Colorado
  • Cirsium eatonii var. murdockii - northern mountain thistle - Colorado, Idaho, Montana, Nevada, Utah, Wyoming
  • Cirsium eatonii var. peckii - ghost thistle, Steens Mountain thistle - Nevada, Oregon
  • Cirsium eatonii var. viperinum - Snake Range thistle - Nevada

    • References

    Cirsium eatonii Wikipedia
    (Text) CC BY-SA


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