lablab_purpureus_l.

Lablab purpureus (L.) Sweet - Fabaceae - lablab, hyacinth bean, Helmbohne, Faselbohne

„The native range of this species is Cape Verde, Tropical & S. Africa, Madagascar, India. It is a scrambling annual or perennial and grows primarily in the seasonally dry tropical biome. It is used as animal food, a poison and a medicine, has environmental uses and for food.“ Kew

„The plant is variable due to extensive breeding in cultivation, but in general, they are annual or short-lived perennial vines. The wild species is perennial. The thick stems can reach 6 meters (20 ft) in length. The leaves are made up of three pointed leaflets, each up to 15 centimeters (6 in) long. They may be hairy on the undersides. The inflorescence is made up of racemes of many flowers. Some cultivars have white flowers, and others may have purplish or blue.“ wikipedia(EN)

„In Europe and North America, it is used as an ornamental plant… because of its fragrant, purple flowers.“ wikipedia(DE)

Floral electroantennography-active volatiles included limonene, 1,3-diethylbenzene, benzaldehyde, acetophenone, and 4-ethylbenzaldehyde e.g.
[Wang, Pan, et al. „Antennal and behavioral responses of female M aruca vitrata to the floral volatiles of V igna unguiculata and L ablab purpureus.“ Entomologia Experimentalis et Applicata 152.3 (2014): 248-257]