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Diffuse Knapweed

Scientific Name

Centaurea diffusa Lam. (ITIS)

Common Name

Diffuse knapweed, white knapweed, spreading knapweed, tumble knapweed

Synonym

Acosta diffusa (Lam.) (ITIS)

Native To

Eastern Mediterranean region (Winston et al. 2012)

Date of U.S. Introduction
Means of Introduction

Introduced accidentally through contaminated seed (Zouhar 2001)

Impact

Reduces agricultural yields and forage values; crowds out native species (Winston et al. 2012)

Diffuse knapweed
Image use policy

Diffuse knapweed, flowers

Credit

USDA APHIS PPQ, Oxford, North Carolina

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Distribution / Maps / Survey Status

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Selected Resources

The section below contains highly relevant resources for this species, organized by source.

Council or Task Force
Partnership
Federal Government
State and Local Government
Academic
Professional
Citations