Centaurea nigra is a species of flowering plant in the family Asteraceae, and is also known as lesser knapweed, common knapweed, black knapweed and bell weed.

Jul 26, 2021 · Gardeners are ever at the ready, waiting for an attack from the newest noxious weed - knapweed is no exception. Knapweed removal can be time consuming and frustrating, but this article …

Jun 1, 2015 · Knapweed is a noxious weed found in many places: yards, pastures and forests. True control of this weed takes a few seasons. Learn how to kill it here.

Spotted knapweed is a very aggressive species that can quickly infest large areas. Knapweed infestations increase production costs for ranchers, degrade wildlife habitat, decrease plant diversity, …

Common knapweed, also known as 'black knapweed', is a thistle-like plant that can be found on all kinds of grasslands, from roadside verges to woodland rides, clifftops to lawns.

An imported weed from Europe, diffuse knapweed has thrived in the disturbed and dry areas that predominate at the lower elevations of the Wenatchee National Forest. “If you have an intact forest, …

Knapweed (Centaurea nigra) is wild, edible and nutritious food. Identify knapweed via its pictures, habitat, height, flowers and leaves.

Spotted knapweed is a short-lived, non-creeping perennial that reproduces from seed and forms a new shoot each year from a taproot. Diffuse and spotted knapweed are readily controlled with herbicides. …

Individual seeds can be easily attached to, and transported by, passing wildlife. Knapweed plants have a very bitter taste and infested rangeland areas are generally not grazed by cattle or wildlife. …

Russian knapweed (Rhaponticum repens) is a nonnative weed in the western United States. It was introduced in the late 1800’s and is now invading and degrading cropland, rangeland, riparian areas, …