Centaurea diffusa
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- Successful Biological Control of Diffuse Knapweed, Centaurea Diffusa by the Weevil
- Spotted Knapweed (Centaurea Steobe) Plant Guide
- Invasive Plant List
- Diffuse Knapweed Author: Various Centaurea Diffusa Lam.; Parks Affected: Many Acosta Diffusa (Lam.) Sojak
- Centaurea Diffusa Lam
- Spotted Knapweed (Centaurea Stoebe)
- MEADOW KNAPWEED (Centaurea Jacea X Nigra)
- Portland Plant List
- Centaurea Maculosa: Invader of Western U.S. Grasslands
- Identification and Management of Knapweeds in Colorado
- Biology and Biological Control of Knapweeds
- And Spotted Knapweed (Centaurea Maculosa) Author(S): Roger L
- Impact of Biological Control on Two Knapweed Species in BC
- DIFFUSE KNAPWEED (Centaurea Diffusa) Description: Diffuse
- Biology and Biological Control of Knapweed
- Spotted Knapweed
- The Impact of Two Introduced Herbivores on the Population Ecology of Lythrum Salicaria: Implications for Plant Performance, Reproduction and Community Diversity
- Diffuse Knapweed Control