Synonyms|4Antonyms|0|Broader|1Narrower|0Related|1
3
lesser knapweed
2
hardheads
1
Centaurea nigra
0
knapweed
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ChicagoSmart Define. 2013. "black knapweed thesaurus" https://smartdefine.org/black_knapweed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, black knapweed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/black_knapweed/thesaurus/synonyms>.
MLASmart Define. "black knapweed thesaurus" 18 May 2013. Web. 20 September 2026. <https://smartdefine.org/black_knapweed/thesaurus/synonyms>