There are a number of invasive plant species in the Central Kootenay.
Download our most recent priority list here (PDF - 44KB)

For more detailed information on the biology, distribution, and management strategy for each species in our region, please see the Invasive Plant Profiles

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Dalmatian toadflax

Dalmatian toadflax has a somewhat waxy stem, leaves the clasp the stem, and yellow snap-dragon like flowers. It was brought to North America as an ornamental species in the late 1800's and has since infested thousands of hectares in BC. It's early flowering, prolific seed production, and strong root system, make it a very aggressive competitor and native plant species can't keep up. Eventually, thickets of Dalmatian toadflax can grow in areas that used to be beautiful native grasslands.

There is a successful biocontrol agent for Dalmatian toadflax. It is a weevil (type of beetle) called Mecinus janthinus that attacks the stem of the plant, and impacts flowering. If you have Dalmatian toadflax on your property, you can check for evidence of these insects by looking for black, cigar-shaped beetles in May and June, and looking for small shotholes in the stem of the plant.

In the Central Kootenay, Dalmatian toadflax is found On the east shore of Kootenay Lake, in Nelson, Castlegar/Rosbon to Trail, and the Columbia Gardens/7 Mile dam areas.


Additional Information:
www.weedsbc.ca/weed_desc/dalmatian. ...

Invasive Plant Profile:
Dalmatian toadflax - Linaria genistifolia spp. dalmatica - 746.7 KB

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