Regulated Weeds

Certain species are regulated under the Alberta Weed Control Act due to their invasive nature, which poses significant threats to agriculture and the environment. Invasive plants spread rapidly, are highly competitive, and can quickly displace native vegetation and crops. Weed Inspectors in Northern Sunrise County work diligently to detect and monitor these species.

The Weed Control Act classifies invasive weeds into two categories based on their distribution and threat level: Prohibited Noxious where species must be eradicated and Noxious where species must be controlled.

The following species are most commonly found in the County. For an extensive listing of regulated species, visit the Weed Control Regulation.

Prohibited Noxious

These are the most common prohibited noxious weeds in the County that pose a severe threat to agriculture and the environment and must be eradicated.

Invasive Phragmites	Pale Yellow Iris	Purple Loosestrife
Scentless Chamomile Elevated in the County

Noxious

These are the most common noxious weeds in the County that pose a severe threat to agriculture and the environment and must be controlled.

Canada Thistle	Common Tansy	Dalmatian Toadflax
Dame's Rocket	Kochia Elevated in the County	Oxeye Daisy
Tall Buttercup	White Cockle	Yellow Clematis
Yellow Toadflax