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knapweed |
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knapweed any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites) How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Baskin points to Asian long-horned beetles, kudzu, zebra mussels, West Nile virus, spotted knapweed, and caulerpa seaweed as just a few culprits. The burgundy foliage of this spiny, 4- to 6-foot species contrasts nicely with other foliage colors, such as that of the golden arborvitae (Platycladus orientalis), the ``Old Gold'' Chinese juniper, the blue Pfitzer juniper, or the silver knapweed (Centaurea gymnocarpa). When the district solicited public comments, people expressed concern about ground damage from heavy machinery, further spread of spotted knapweed (a noxious plant), and the smoky air that results from burning slash. |
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