Greater Knapweed

Plant Bio

Common Name:Greater knapweed
Family:Asteraceae
Genus:Centaurea
Species:scabiosa
Classification/Rank:Extremely Invasive
Method of Transportation:
Habitat/Range:• two sites reported east of Burns Lake, and one in Telkwa in 1997; may have been first record of this knapweed in BC

Description

• perennial herb that rows 0.3 to 1.5 m tall
• stems erect, densely branched; branches green, five angled, sparsely black hairy, tipped with spines
• basal leaves egg-shaped in outline, deeply irregularly pinnately segmented with narrow, lance shaped segments; stem leaves broader, reduced upwards
• flowers are purple; heads discoid, few to several on ascending branches; bracts egg to lance shaped, black or brown

News

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posted: October 22, 2018
Upcoming Forum on Vegetation Management - Nov 6-8

This will be of interest to those writing pest management plans or who work in the vegetation management field. Check out IVMA's website...

posted: October 6, 2018
AGM coming up - October 30 in Smithers!

2018 AGM and General Members' Meeting - Everyone Welcome!

DATE: Tuesday, October 30, 2018, 10:00 am to 2:00 pm.
PLACE: Royal Canadian...