Perennial Sow Thistle

Graham Calow

Plant Bio

Common Name:Perennial sow thistle
Family:Asteraceae
Genus:Sonchus
Species:arvensis
Classification/Rank:Invasive
Method of Transportation:
Habitat/Range:• wide distribution in the region particularly along roadsides. • extent of infestation has not been determined. • very common in most areas and has been found as far away as kilometer 66 on Telegraph Creek Road, and at Warm Bay in Atlin. • felt that the weed is cyclic in this region. Populations high in early and late nineties, lower in mid nineties

Description

• perennial plant with creeping rhizomes; grows up to 2 m tall
• stems erect, branched, and exude a milky juice when cut
• leaves alternate, waxy, weakly prickled edges; lower leaves

News

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posted: June 15, 2016
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