Added 10 October 2026 indigofera noun Categories: PlantsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about indigofera at Wordnik → Where our words come from → Genus of tropical herbs and shrubs having odd-pinnate leaves and spurred flowers in long racemes or spikes. Related Words: ipomoeaaristolochiapolygalapassifloraceaephyllanthusaizoaceaechamaecristadioscoreaastragalusdalbergiaacanthaceae Back to today's word