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knapweed
(redirected from Knapweeds)

    Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
knap·weed  (npwd)
n.
Any of various thistles of the genus Centaurea, having variously colored flowers grouped in a head with a spiny involucre.
[Middle English knopwed : knop, knob; see knop + wed, weed; see weed1.]
knapweed [ˈnæpˌwiːd]
n
(Life Sciences & Allied Applications / Plants) any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites) See also centaury [2] hardheads
[C15 knopwed; see knop, weed1]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.knapweedknapweed - any of various plants of the genus Centaurea having purple thistlelike flowers
slender knapweed - a variety of knapweed
Jersey knapweed - a variety of knapweed
centaury - any plant of the genus Centaurea
black knapweed, Centaurea nigra, hardheads, lesser knapweed - a weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized
Centaurea scabiosa, great knapweed, greater knapweed - tall European perennial having purple flower heads


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? Mentioned in ? References in periodicals archive
 
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
Habitat(R) Herbicide Now Approved for Use in California; Habitat ... by Business Wire
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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