knapweed

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈnæpˌwiːd/US:USA pronunciation: respellingUSA pronunciation: respelling(nap′wēd′)


WordReference Random House Unabridged Dictionary of American English © 2026
knap•weed  (nap′wēd′),USA pronunciation n. 
  1. Plant Biologyany composite plant of the genus Centaurea, esp. the weedy C. nigra, having rose-purple flowers set on a dark-colored, knoblike bract. Also called hardheads, Spanish button. 
  • late Middle English knopwed. See knop, weed1 1400–50

Collins Concise English Dictionary © HarperCollins Publishers::
knapweed /ˈnæpˌwiːd/ n
  1. any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites)
    See also centaury
Etymology: 15th Century knopwed; see knop, weed1
WordReference Random House Unabridged Dictionary of American English © 2026
cen•tau•re•a  (sen tôr′ē ə),USA pronunciation n. 
  1. Plant Biologyany of numerous composite plants of the genus Centaurea, having tubular flowers in a variety of colors. Cf. cornflower (def. 1), knapweed. 
  • Neo-Latin (Linnaeus) by suffix change from Medieval Latin centauria; see centaury, -ea

'knapweed' also found in these entries (note: many are not synonyms or translations):
centaury - centaurea - hard head - Spanish button

Forum discussions with the word(s) "knapweed" in the title:


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