Prohibited Noxious Weeds as per Alberta Weed Control Act and Regulations
- Autumn olive (Elaeagnus umbellata)
- Barberry, common (Berberis vulgaris)
- Buckthorn, common (Rhamnus cathartica)
- Crupina, common (Crupina vulgaris)
- Dyer’s Woad (Isatis tinctoria)
- Eurasian Watermilfoil (Myriophyllum spicatum)
- Flowering Rush (Butomus umbellatus)
- Garlic Mustard (Alliaria petiolata)
- Giant Hogweed (Heracleum mantegazzianum)
- Himalayan Balsam (Impatiens glandulifera)
- Hoary Alyssum (Berteroa incana)
- Orange Hawkweed (Hieracium aurantiacum)
- Meadow Hawkweed (Hieracium caespitosum)
- Mouse-ear Hawkweed (Hieracium pilosella)
- Bighead Knapweed (Centaurea macrocephala)
- Black Knapweed (Centaurea nigra)
- Brown Knapweed (Centaurea jacea)
- Diffuse Knapweed (Centaurea diffusa)
- Hybrid Knapweed (Centaurea × psammogena)
- Meadow Knapweed (Centaurea × moncktonii)
- Russian Knapweed (Rhaponticum repens)
- Spotted Knapweed (Centaurea stoebe ssp. micranthos)
- St. John’s Wart (Hypericum perforatum)
- Starthistle, Yellow (Centaurea solstitialis)
- Squarrose Knapweed (Centaurea virgata ssp. squarrosa)
- Tyrol Knapweed (Centaurea nigrescens)
- Jointed Goatgrass (Aegilops cylindrica)
- Puncturevine (Tribulus terrestris)
- Purple Loosestrife (Lythrum salicaria)
- Red Bartsia (Odontites vernus)
- Rush Skeletonweed (Chondrilla juncea)
- Salt Cedar / Tamarisk (Tamarix spp.)
- Saltlover (Halogeton glomeratus)
- Sulphur Cinquefoil (Potentilla recta)
- Tansy Ragwort (Jacobaea vulgaris / Senecio jacobaea)
- Yellow Nutsedge (Cyperus esculentus)
- Marsh Thistle (Cirsium palustre)
- Plumeless Thistle (Carduus acanthoides)
- Nodding Thistle (Carduus nutans)
- Pale Yellow Iris (Iris pseudacorus)
Noxious Weeds as per Alberta Weed Control Act and Regulations
- Black henbane (Hyoscyamus niger)
- Blueweed (Echium vulgare)
- Broad-leaved pepper-grass (Lepidium latifolium)
- Canada thistle (Cirsium arvense)
- Common baby’s-breath (Gypsophila paniculata)
- Common mullein (Verbascum thapsus)
- Common tansy (Tanacetum vulgare)
- Creeping bellflower (Campanula rapunculoides)
- Dalmatian toadflax (Linaria dalmatica)
- Dame’s rocket (Hesperis matronalis)
- Downy brome (Bromus tectorum)
- Field bindweed (Convolvulus arvensis)
- Field scabious (Knautia arvensis)
- Great burdock (Arctium lappa)
- Hoary cress (globe-, heart-, and lens-podded) (Lepidium spp.)
- Hound’s-tongue (Cynoglossum officinale)
- Japanese brome (Bromus japonicus)
- Leafy spurge (Euphorbia esula)
- Lesser burdock (Arctium minus)
- Oxeye daisy (Leucanthemum vulgare)
- Perennial sow-thistle (Sonchus arvensis)
- Scentless chamomile (Tripleurospermum inodorum)
- Tall buttercup (Ranunculus acris)
- White cockle (Silene latifolia ssp. alba)
- Woolly burdock (Arctium tomentosum)
- Yellow clematis (Clematis tangutica)
- Yellow toadflax (Linaria vulgaris)
Weeds elevated to Noxious weeds within the MD of Ranchland as per Alberta Weed Control Act and Regulations
- Bull Thistle (Cirsium vulgare (Savi) Ten.) Caraway (Carum carvi L.)
- Yellowdevil Hawkweed (Hieracium glomeratum Froel.)
- Kingdevil Hawkweed (Hieracium xyoribundum Wimmer & Grab.)
- European Hawkweed (Hieracium sabaudum L.)
- Tall Hawkweed (Hieracium piloselloides Vill.)
- Spotted Hawkweed (Hieracium maculatum Sm.)
- Wall Hawkweed (Hieracium murorum L.)
- Whiplash Hawkweed (Hieraciumjlagellare Willd.)
- Queen Anne’s Lace (Daucus carota L.) — excluding Daucus carota SSP. sativus (Hoffm.) Arcang. North Urica grass (Ventenata dubia (Leers) Coss.)