- darling pea, poison bush - either of two Australian plants of the genus Swainsona that are poisonous to sheep
--1 is a kind of subshrub, suffrutex
--1 is a member of Swainsona, genus Swainsona
--1 has particulars:smooth darling pea, Swainsona galegifolia; hairy darling pea, Swainsona greyana, Swainsona grandiflora