SWALLOWWORT

celandine, greater celandine, swallowwort, swallow wort, Chelidonium majus

(noun) perennial herb with branched woody stock and bright yellow flowers

Source: WordNet® 3.1

Etymology

Noun

swallowwort (countable and uncountable, plural swallowworts)

Alternative form of swallow-wort

Source: Wiktionary

Swal"low*wort`, n. (Bot.) (a) See Celandine. (b) A poisonous plant (Vincetoxicum officinale) of the Milkweed family, at one time used in medicine; -- also called white swallowwort. African swallowwort, a plant of the genus Stapelia.

Source: Webster’s Unabridged Dictionary 1913 Edition