Plumeless Thistle

Robert Carr Mark Wenz Robert Carr

Plant Bio

Common Name:Plumeless thistle
Family:Asteraceae
Genus:Carduus
Species:acanthoides
Classification/Rank:Very Invasive
Method of Transportation:
Habitat/Range:• none reported in Northwest BC • occurs in isolated pockets in the Thompson agricutural region, but is a major concern in the Omineca agricultural region

Description

• biennial herb that grows 0.3 to 1.5 m tall
• stems spiny-winged and branched above
• basal leaves lacking; stem leaves narrowly elliptical in outline, deeply lobed or pinately cut, sparsely hairy on main veins, spiny margined
• flowers purprle; heads discoid, clustered, or solitary and erect at the ends of branches

Watch an identification video here.

News

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posted: November 7, 2018
2017 Annual Report from NWIPC is now online

NWIPC's Annual Report for 2017 was released at our AGM in Smithers in October 2018. Check it out here.

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...