NIGHTSHADE
nightshade
(noun) any of numerous shrubs or herbs or vines of the genus Solanum; most are poisonous though many bear edible fruit
Source: WordNet® 3.1
Etymology
Noun
nightshade (plural nightshades)
Any of the poisonous plants belonging to the genus Solanum, especially black nightshade or woody nightshade.
(colloquial) Any plant of the wider Solanaceae family, including the nightshades as well as tomato, potato, eggplant, and deadly nightshade.
Belladonna or deadly nightshade, Atropa belladonna.
Any of several plants likened to nightshade, usually because of similar dark-colored berries.
Source: Wiktionary
Night"shade`, n. Etym: [AS. nichtscadu.] (Bot.)
Definition: A common name of many species of the genus Solanum, given esp.
to the Solanum nigrum, or black nightshade, a low, branching weed
with small white flowers and black berries reputed to be poisonous.
Deadly nightshade. Same as Belladonna (a).
– Enchanter's nightshade. See under Enchanter.
– Stinking nightshade. See Henbane.
– Three-leaved nightshade. See Trillium.
Source: Webster’s Unabridged Dictionary 1913 Edition