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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 ...

Cirsium

Plant
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
Scientific name: Cirsium
Family: Asteraceae
Genus: Cirsium; Mill.
Kingdom: Plantae
Order: Asterales
Tribe: Cardueae

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Pasture Thistle, also called Field Thistle, is a biennial or short-lived perennial. It has a central taproot so it does not spread by rhizomes like Canada ...
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Swamp Thistle produces vibrant purple to pink flowers, and is only weakly armed compared to other thistles. It is biennial but will reseed.
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 ...
Swamp Thistle is frequent in wet meadows and moist woodlands throughout east central and all of northern Minnesota. While it may grow as tall as 8 feet, 5 feet ...
It is a tall biennial or short-lived monocarpic thistle, forming a rosette of leaves and a taproot up to 70 cm long in the first year, and a flowering stem 1– ...
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 ...
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 ...
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.