Cirsium ciliolatum is a species of thistle known by the common name Ashland thistle. It is endemic to the Klamath Mountains, where it is known from only a few occurrences in Jackson and Josephine Counties in Oregon, as well as neighboring Humboldt and Siskiyou Counties in California.[3][4] It is related to Cirsium undulatum and may be more accurately described as a variety of that species.[5]
| Cirsium ciliolatum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Cirsium |
| Species: | C. ciliolatum
|
| Binomial name | |
| Cirsium ciliolatum | |
| Synonyms[2] | |
| |
Cirsium ciliolatum is a perennial herb growing from a rootstock branching with runner roots to a maximum height near 200 cm (79 in). It is cobwebby with fibers. The gray-green woolly leaves are smooth along the edges to deeply lobed, sometimes spiny and cobwebby, and up to 25 centimeters at the longest. The inflorescence is a cluster of several flower heads each about 2 centimeters long and up to 5 wide. The head is lined with sticky, spiny phyllaries and packed with white to lavender flowers. The fruit is an achene with a thick body a few millimeters long and a pappus about 1.5 centimeters in length.[5]
References
edit- ^ "NatureServe Explorer". NatureServe Explorer. NatureServe. 2022. Retrieved 19 May 2022.
- ^ The Plant List, Cirsium ciliolatum (L.F. Hend.) J.T. Howell
- ^ Biota of North America Program 2014 county distribution map
- ^ Calflora taxon report, University of California, Cirsium ciliolatum (L. Henderson) J. Howell, Ashland thistle
- ^ a b Flora of North America, Cirsium ciliolatum
External links
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