Decumbent or climbing biennial, glabrescent prickly stems, 3-foliolate leaves hirsute both surfaces & doubky serrate, terminal leaflet to 60mm long, terminal or axillary pilose prickly corymbs, sepas to 7mm long, white petals, staminate petals to 12mm long, pistillate petals to 20mm long, black fruit 10mm long & nearly as broad