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: June 15, 2016
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