The Collaborative International Dictionary
Dulcamara \Dul`ca*ma"ra\, n. [NL., fr. L. dulcis sweet + amarus bitter.] (Bot.) A plant ( Solanum Dulcamara). See Bittersweet, n., 3 (a) .
Dulcamarin \Dul`ca*ma"rin\, n. (Chem.) A glucoside extracted from the bittersweet ( Solanum Dulcamara), as a yellow amorphous substance. It probably occasions the compound taste. See Bittersweet, 3 (a) .
Felonwort \Fel"on*wort`\, n. (Bot.) The bittersweet nightshade ( Solanum Dulcamara). See Bittersweet.
Bittersweet \Bit"ter*sweet`\, n.
Anything which is bittersweet.
A kind of apple so called.
--Gower.-
(Bot.)
A climbing shrub, with oval coral-red berries ( Solanum dulcamara); woody nightshade. The whole plant is poisonous, and has a taste at first sweetish and then bitter. The branches are the officinal dulcamara.
An American woody climber ( Celastrus scandens), whose yellow capsules open late in autumn, and disclose the red aril which covers the seeds; -- also called Roxbury waxwork.
Wikipedia
Solanum dulcamara, also known as bittersweet, bittersweet nightshade, bitter nightshade, blue bindweed, Amara Dulcis, climbing nightshade, fellenwort, felonwood, poisonberry, poisonflower, scarlet berry, snakeberry, trailing bittersweet, trailing nightshade, violet bloom, or woody nightshade, is a species of vine in the potato genus Solanum, family Solanaceae. It is native to Europe and Asia, and widely naturalised elsewhere, including North America, where it is an invasive problem weed.