noun
either of two Australian plants of the genus Swainsona that are poisonous to sheep
• Syn: ↑poison bush
• Hyponyms: ↑smooth darling pea, ↑Swainsona galegifolia, ↑hairy darling pea, ↑Swainsona greyana, ↑Swainsona grandiflora
• Member Holonyms: ↑Swainsona, ↑genus Swainsona
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nounUsage: usually capitalized D
: either of two Australian plants of the genus Swainsona (S. galegifolia and S. greyana) that have racemose flowers and are poisonous to sheep — called also poison bush
Useful english dictionary. 2012.