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Mountain Thistle
Cirsium scopulorum
Cirsium eatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the family Asteraceae.
The species has been found in Idaho, Montana, New Mexico, Wyoming, Nevada, Utah and Colorado.
From the article Cirsium eatonii on Wikipedia (CC BY-SA), quoted section by section
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.
Varieties A number of varieties have been identified, which include:
Cirsium eatonii var. clokeyi - Clokey thistle, Spring Mountains thistle, white-spine thistle. This variety is rare and uncommon. - 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
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries
In the stacks
Searching the stacks…
Every page naming Cirsium scopulorum in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 118518.