Bull Thistle

NWIPC NWIPC NWIPC Lisa Scott

Plant Bio

Common Name:Bull Thistle
Family:Asteraceae
Genus:Cirsium
Species:vulgare
Classification/Rank:Invasive
Method of Transportation:
Habitat/Range:Mesic to dry roadsides, fields, pastures and disturbed areas in the lowland, steppe and montane zones

Description

• biennial herb that grows 0.3-2.0 m tall • stems are erect, branched, and hairy • leaves are lobed, lance shaped, spiny-hairy above and white to grey-woolly below; upper stem leaves are reduced in size • flowers are purple, and several heads occur solitarily at the end of branches

News

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posted: November 3, 2018
“WeedsBMP” App for Forage and Livestock Producers Now Available

Land owners and managers have long recognized the need to control invasive plants to limit their impacts. In May 2018, a new smartphone app...

posted: August 28, 2018
More bioagents released to help control spotted knapweed

Bioagents are one tool in the fight against invasive plants, and they are intensly studied before release to ensure they won't switch to...