Cirsium ciliolatum

Cirsium ciliolatum
Cirsium ciliolatum
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cynareae
Genus: Cirsium
Species: C. ciliolatum
Binomial name
Cirsium ciliolatum
(L.F.Hend.) J.T.Howell

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 County, Oregon, and Siskiyou County, California. It is related to Cirsium undulatum and may be more accurately described as a variety of that species.[1] This native thistle is a perennial herb growing from a rootstock branching with runner roots to a maximum height near two meters. 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.

References

  1. ^ Flora of North America

External links


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