Cirsium neomexicanum is a species of thistle known by the common names New Mexico thistle, powderpuff thistle, lavender thistle, foss thistle and desert thistle.
This plant is native to the southwestern United States, particularly the Mojave Desert.
Cirsium neomexicanum is a tall plant, routinely exceeding 2 metres (6.6 ft) in height. It erects a stem which may have webby fibers and long, stiff spines. The sparse leaves are greenish-gray, hairy, and very spiny.
Atop the mainly naked stems are inflorescences of one or more large flower heads with rounded bases and phyllaries covered in long, curving spines. The largest heads may be up to 5 centimeters in diameter. They are packed with white or lavender disc florets.
- Jepson Manual Treatment of Cirsium neomexicanum
- USDA Plants Profile for Cirsium neomexicanum
- FS.fed.us: Ecology
- Cirsium neomexicanum — UC Photos gallery
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