black knapweed
English Dictionary
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-> black knapweed
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black knapweed Definition
(n)
a
weedy
perennial
with
tough
wiry
stems
and
purple
flowers
;
native
to
Europe
but
widely
naturalized
black knapweed Synonyms
black knapweed
Centaurea nigra
hardheads
lesser knapweed
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