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Centaurea
(redirected from Knapweeds)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
Centaurea
a genus of thistles of the Asteraceae family of plants; contain sesquiterpene lactones which cause nigropallidal encephalomalacia in horses. Includes C. melitensis (Maltese cockspur), C. repens (C. picris, Russian or creeping knapweed, hard heads), C. solstitialis (yellow star or St. Barnaby's thistle).
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Centaurea solstitialis. By permission from Knottenbelt DC, Pascoe RR, Diseases and Disorders of the Horse, Saunders, 2003


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Brazilian pepper -- Purple loosestrife -- Cattail -- Reed canarygrass -- Chinese Tallow Tree -- Swamp rose -- Cogongrass -- Russian-olive -- Giant reed -- Saltcedar -- Junglerice -- Smartweed -- Knapweeds -- Spartina -- Knotweed and Japanese -- Sumac knotweed -- Swamp morning glory or water -- Melaleuca spinach -- Phragmites -- Torpedo grass -- Willow
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Other proposals to come before the weed board would change the designated control areas for saltcedar, Japanese and giant knotweeds and meadow, black and brown knapweeds.
Washington State Department of Agriculture Hearing Notice -- Kudzu ... by Business Wire
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