Hypertext Webster Gateway: "butterwort"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Butterwort \But"ter*wort`\, n. (Bot.)
A genus of low herbs ({Pinguicula}) having simple leaves
which secrete from their glandular upper surface a viscid
fluid, to which insects adhere, after which the margin
infolds and the insects are digested by the plant. The
species are found mostly in the North Temperate zone.
From WordNet (r) 1.7 (wn)
butterwort
n : any of numerous carnivorous bog plants of the genus
Pinguicula having showy purple or yellow or white flowers
and a rosette of basal leaves coated with a sticky
secretion to trap small insects
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