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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
common teasel 2
Dipsacus fullonum
Orange-peel Clematis 3
Clematis tangutica
Caraway 4
Carum carvi
black henbane 5
Hyoscyamus niger
viper's-bugloss 6
Echium vulgare
common St. John's-wort 7
Hypericum perforatum
baby's-breath 8
Gypsophila paniculata
Himalayan balsam 9
Impatiens glandulifera
dalmatian toadflax 10
Linaria dalmatica dalmatica
common toadflax 11
Linaria vulgaris
tall buttercup
Ranunculus acris acris
sulphur cinquefoil 12
Potentilla recta
common buckthorn 13
Rhamnus cathartica
purple loosestrife 14
Lythrum salicaria
bladder campion 15
Silene vulgaris
five-stamen tamarisk 16
Tamarix chinensis
saltcedar 17
Tamarix ramosissima
tansy 18
Tanacetum vulgare
small-flowered tamarisk 19
Tamarix parviflora
creeping thistle 20
Cirsium arvense
broadleaved pepperweed 21
Lepidium latifolium
great mullein 6
Verbascum thapsus
dame's rocket 22
Hesperis matronalis
Field Scabious 23
Knautia arvensis
hairy white-top 24
Lepidium appelianum
field bindweed 25
Convolvulus arvensis
heart-podded hoary cress 26
Lepidium draba
scentless mayweed 27
Tripleurospermum inodorum
greater burdock 28
Arctium lappa
evening lychnis 29
Silene latifolia alba
Woolly Burdock 30
Arctium tomentosum
Lens-podded Hoary Cress 31
Lepidium draba chalapense
lesser burdock 32
Arctium minus
oxeye daisy 33
Leucanthemum vulgare
Perennial Sow Thistle 34
Sonchus arvensis
cheatgrass 35
Bromus tectorum
Thunberg's Brome
Bromus japonicus
hound's-tongue 14
Cynoglossum officinale
black knapweed 36
Centaurea nigra
meadow buttercup 37
Ranunculus acris
Giant Knapweed 18
Centaurea macrocephala
European barberry 38
Berberis vulgaris
diffuse knapweed 39
Centaurea diffusa
Brown Knapweed 40
Centaurea jacea
bearded creeper 41
Crupina vulgaris
woad 1
Isatis tinctoria
garlic mustard 42
Alliaria petiolata
Giant Hogweed 43
Heracleum mantegazzianum
Centaurea ×psammogena 44
meadow hawkweed 45
Pilosella caespitosa
Bohemian Knotweed 46
Reynoutria × bohemica
Monckton's Knapweed 47
Centaurea × moncktonii
Marsh Thistle 48
Cirsium palustre
mouse-eared hawkweed 49
Pilosella officinarum
musk thistle 50
Carduus nutans
orange hawkweed 51
Pilosella aurantiaca
puncture vine 52
Tribulus terrestris
Broad-winged Thistle 53
Carduus acanthoides
Red Bartsia 54
Odontites vernus
Rush Skeletonweed 55
Chondrilla juncea
Centaurea alba strepens
Russian knapweed 56
Leuzea repens
jointed goat grass 57
Aegilops cylindrica
Tyrol knapweed 58
Centaurea nigrescens
medusa head 1
Taeniatherum caput-medusae
yellow nutsedge 59
Cyperus esculentus
hoary alyssum 60
Berteroa incana
Saltlover 61
Halogeton glomeratus
Eurasian water-milfoil 62
Myriophyllum spicatum
ragwort 63
Jacobaea vulgaris
Yellow Starthistle 64
Centaurea solstitialis
Flowering-rush 65
Butomus umbellatus
Yellow Iris 66
Iris pseudacorus

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

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