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Noxious and Invasive Plants of Calgary, AB

This guide aims to educate users in recognizing some of Alberta's invasive plants and to help document their distribution.

The following list includes noxious and invasive plants outlined by the Province of Alberta and City of Calgary as prohibited noxious weeds and plants. ...more ↓

Creeping Bellflower 1
Campanula rapunculoides
tansy 2
Tanacetum vulgare
creeping thistle 3
Cirsium arvense
scentless mayweed 4
Tripleurospermum inodorum
greater burdock 5
Arctium lappa
Woolly Burdock 6
Arctium tomentosum
lesser burdock 7
Arctium minus
oxeye daisy 8
Leucanthemum vulgare
Perennial Sow Thistle 9
Sonchus arvensis
black knapweed 10
Centaurea nigra
Giant Knapweed 2
Centaurea macrocephala
diffuse knapweed 11
Centaurea diffusa
Brown Knapweed 12
Centaurea jacea
bearded creeper 13
Crupina vulgaris
Centaurea ×psammogena 14
meadow hawkweed 15
Pilosella caespitosa
Monckton's Knapweed 16
Centaurea × moncktonii
Marsh Thistle 17
Cirsium palustre
mouse-eared hawkweed 18
Pilosella officinarum
musk thistle 19
Carduus nutans
orange hawkweed 20
Pilosella aurantiaca
Broad-winged Thistle 21
Carduus acanthoides
Rush Skeletonweed 22
Chondrilla juncea
Centaurea alba strepens
Russian knapweed 23
Leuzea repens
Tyrol knapweed 24
Centaurea nigrescens
ragwort 25
Jacobaea vulgaris
Yellow Starthistle 26
Centaurea solstitialis

Edited by Matt Wallace, some rights reserved (CC BY-SA)

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