| Noun | 1. | genus Allamanda - genus of tropical American woody vines dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination Apocynaceae, dogbane family, family Apocynaceae - chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs allamanda - a plant of the genus Allamanda having large showy funnel-shaped flowers in terminal cymes |