Cirsium_eatonii

<i>Cirsium eatonii</i>

Cirsium eatonii

Species of thistle

Cirsium eatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the family Asteraceae.[2][3]

Quick Facts Cirsium eatonii, Conservation status ...

The species has been found in Idaho, Montana, New Mexico, Wyoming, Nevada, Utah and Colorado.[4]

Description

Cirsium eatonii is highly variable. It is an erect herb up to 150 cm (60 inches or 5 feet) tall in some populations. The entire foliage is more or less spiny. One plant produces several flower heads with pink to purple or yellow flowers. The species grows at high elevations in grasslands, sagebrush steppes, open savannahs, etc.[3]

Varieties[1][3]

A number of varieties have been identified, which include:

Var. eriocephalum in northern New Mexico.

References

  1. [1]
    The Plant List, Cirsium eatonii (A.Gray) B.L.Rob.
  2. [2]
    "Cirsium eatonii". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 11 March 2012.
  3. [3]
    "Cirsium eatonii". Flora of North America. efloras.org. Retrieved 11 March 2012.
  4. [4]
    "Cirsium eatonii (A. Gray) B.L. Rob". USDA PLANTS database. Retrieved 11 March 2012.
  5. [5]
    "NatureServe Explorer". NatureServe Explorer Cirsium eatonii var. clokeyi. NatureServe. 2022. Retrieved 22 May 2022.


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