Lisa Scott. 1998. Weed Invasion in Smith, I.M., and G.G.E. Scudder, eds. Assessment of species diversity in the Montane Cordillera Ecozone. Burlington: Ecological Monitoring and Assessment Network, 1998.

WEED INVASION

Lisa Scott

APPENDIX B

RESTRICTED, NOXIOUS AND NUISANCE WEEDS OF ALBERTA

The following plants are designated as restricted weeds in Alberta:

Red bartsia (Odontites serotina L.)

Diffuse knapweed (Centaurea diffusa Lam.)

Spotted knapweed (Centaurea maculosa Lam.)

Nodding thistle (Carduus nutans L.)

Eurasian Water Milfoil

(Myriophyllum spicatum L.)

Dodder (Cuscuta spp.)

Yellow star-thistle (Centaurea solstitialis L.)

The following plants are designated as noxious weeds in Alberta:

Russian knapweed (Centaurea repens L.)

Field bindweed (Convolvulus arvensis L.)

White Cockle (Lychnis alba (Mill.) E.H.L. Krause)

Bladder campion (Silene cucubalus L.)

Cleavers (Galium aparine L. and G. spurium L.)

Hoary cress (Cardaria spp.)

Knawel (Scleranthus annuus L.)

Perennial sow thistle (Sonchus arvensis L.)

Cypress spurge (Euphorbia cyparissias L.)

Leafy spurge (Euphorbia esula L.)

Stork's bill (Erodium cicutarium L.)

Canada thistle (Cirsium arvense L.)

Toadflax (Linaria vulgaris Mill.)

Persian darnel (Lolium persicum L.)

Scentless Chamomile (Matricaria maritima L.)

Common tansy (Tanacetum vulgare L.)

Blueweed (Echium vulgare L.)

Spreading dogbane (Apocynum androsaemifolium L.)

Field scabious (Knautia arvensis (L.) Duby)

Hound's-tongue (Cynoglossum officinale L.)

Oxeye daisy (Chrysanthemum leucanthemum L.)

Tall buttercup (Ranunculus acris L.)

Purple Loosestrife - (Lythrum salicaria L.)

The following plants are designated as nuisance weeds in Alberta:

Dalmatian toadflax (Linaria dalmatica (L.) Maire and Petitmengin)

Wild radish (Raphanus raphanistrum L.)

Creeping bellflower (Campanula rapunculoides L.)

Hedge bindweed (Convolvulus sepium L.)

Bluebur (Lappula echinata L.)

Downy brome (Bromus tectorum L.)

Tartary buckwheat (Fagopyrum tataricum L.)

Wild buckwheat (Polygonum convolvulus L.)

Biennial campion (Silene cserei L.)

Night-flowering catchfly (Silene noctiflora L.)

Common chickweed (Stellaria media (L.) Vill.)

Field chickweed (Cerastium arvense L.)

Mouse-eared chickweed (Cerastium vulgatum L.)

Rough cinquefoil (Potentilla norvegica L.)

Cow cockle (Saponaria vaccaria L.)

Flixweed (Descurainia sophia L.)

Green foxtail (Setaria viridis L.)

Quack grass (Agropyron repens L.)

Narrow-leaved hawk's-beard (Crepis tectorum L.)

Hemp nettle (Galeopsis tetrahit L.)

Henbit (Lamium amplexicaule L.)

Lady's-thumb (Polygonum persicaria L.)

Round-leaved mallow (Malva rotundifolia L.)

Ball mustard (Neslia paniculata L.)

Dog mustard (Erucastrum gallicum L.)

Green tansy mustard (Descurainia pinnata L.)

Wild mustard (Sinapis arvensis L.)

Wormseed mustard (Erysimum cheiranthoides L.)

Wild oats (Avena fatua L.)

Redroot pigweed (Amaranthus retroflexus L.)

Shepherd's-purse (Capsella bursa-pastoris L.)

Annual sow thistle (Sonchus oleraceus L.)

Corn spurry (Spergula arvensis L.)

Stinkweed (Thlaspi arvense L.)

Russian thistle (Salsola pestifer A. Nels.)

Dandelion (Taraxacum officinale Weber in Wiggers)