Cirsium
Plant
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Cirsium is a genus of perennial and biennial flowering plants in the Asteraceae, one of several genera known commonly as thistles. They are more precisely known as plume thistles. These differ from other thistle genera in having feathered hairs to... Wikipedia
Lower classifications
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There are 58 species of Cirsium thistles native to North America. This thistle is 80 to 200 centimeters (about, 31 to 79 inches) tall. The stem is upright and ...
Dec 18, 2013 · Overview. Appearance: Cirsium arvense, a rhizomatous perennial grows from 1-5 ft. (0.3-1.5 m) tall. Roots can grow deep into the ground.
The Pitcher's thistle is a native thistle that grows on the open sand dunes and low open beach ridges along the shorelines of Lakes Michigan, Superior, and ...
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Tall Thistle prefers full sun with little shade and a mesic (medium) moisture soil. The flowers of are typically purple or pink, 1-2 inches in diameter. These ...
It is also naturalised in North America, Africa, and Australia and is an invasive weed in some areas. ... It is the national flower of Scotland.
Canada Thistle - Washington State Noxious Weed Control Board
www.nwcb.wa.gov › weeds › canada-this...
Cirsium arvense. Canada Thistle. Family: Asteraceae. Weed class: C Year Listed: 1988. Native to: Europe and Asia Is this Weed Toxic?: not known to be. Why Is It ...
Photos and information about Minnesota flora - Tall Thistle: purple to pink flower heads 1 to 2 inches across and bracts with soft needle-like spines.
Habitat and impact. Bull thistle prefers sunny, open areas and can tolerate a wide range of conditions, from moist to dry soils, and is typically found in ...
One of the more common of our native plants is wavyleaf thistle (Cirsium undulatum). Primarily a western species, it grows from the arid plateaus of the Pacific ...