Knapweed, Bighead

Regulated Act: Alberta Weed Control Act

Provincial Designation: Prohibited Noxious

Colour: Yellow

Latin Name: Centaurea macrocephala

Fact Sheet1: Click Here to View/Download PDF

A close up of some yellow flowers with green leaves

bighead-knapweed

A close up of a plant with yellow flowers

bighead-knapweed

A yellow flower with green leaves on top of it.

bighead-knapweed

A ruler and some tiny bugs on top of a table.

Bighead Knapweed seeds: Photo credit Daniel Laubhann City of Edmonton

A garden of yellow flowers in front of some houses.

Bighead-Knapweed-Photo Credit Daniel-Laubhann-City-of-Edmonton

A close up of some green plants in the grass

Bighead Knapweed: Photo credit Daniel Laubhann City of Edmonton

A close up of two yellow flowers with green leaves

Bighead Knapweed: Photo credit Daniel Laubhann City of Edmonton

A close up of the top of a plant

Bighead Knapweed: Photo credit Daniel Laubhann City of Edmonton

A field of yellow flowers with green leaves.

Bighead-Knapweed-Photo Credit Daniel-Laubhann-City-of-Edmonton

A yellow flower with green leaves on the side.