Jó lehet a philippensis, mert fürtös.
1 Ovary and capsule glabrous or sparsely pilose; flowers in dense spicate racemes; calyx lobes acute 3 Lindenbergia philippensis
+ Ovary and capsule densely pilose; flowers solitary in leaf axils or in lax spikes; calyx lobes obtuse, sometimes apiculate. (2)
2 (1) Calyx 4-5 mm; corolla 0.8-0.9 cm; flowers solitary in leaf axils; leaf blade to 6 cm 1 Lindenbergia muraria
+ Calyx 7-8 mm; corolla to 3 cm; flowers in lax spikes; leaf blade to 20 cm 2 Lindenbergia grandiflora