What is "enchanter's nightshade"

Nightshade \Night"shade`\, n. [AS. nichtscadu.] (Bot.) 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.

Enchanter \En*chant"er\, n. [Cf. F. enchanteur.] One who enchants; a sorcerer or magician; also, one who delights as by an enchantment.

Like ghosts from an enchanter fleeing.
--Shelley.

Enchanter's nightshade (Bot.), a genus ( Circ[ae]a) of low inconspicuous, perennial plants, found in damp, shady places.

n. Any of the genus ''Circaea'' of low inconspicuous perennial plants, found in damp, shady places.

n. any of several erect perennial rhizomatous herbs of the genus Circaea having white flowers that open at dawn; northern hemisphere