Botanical name : Pajanelia longifolia K.Schum. (Pajnelia rheedii Wt.)
Family : Bignoniaceae
SANSKRIT SYNONYMS
Brihat dunduka, Brihat syonaka 
AYURVEDIC PROPERTIES
Rasa    : Kashaya, Tikta
Guna   : Lakhu, Rooksha
Virya   : Seeta
Vipaka : Katu
PLANT NAME IN DIFFERENT LANGUAGES
English  : Wild Trumpet tree
Hindi  : Bandsnapatha, Ban syona
Malayalam : Azantha, Pajenili, Valiya palakappayani, Arlanta
Distribution – Growing wildly in deciduous forests, also cultivated as a supporting tree for pepper plants. 
PLANT DESCRIPTION
A moderate sized deciduous tree grows up to 18 meters in height. Leaves large, pinnate, with soft rachis, leaflets ovate or elliptic, acuminate, glabrous; flowers large, bluish purple outside and pinkish white within, seen in large erect racemes. Fruits flat capsule, about 80 cm long, enclosing many flat winged seeds.
MEDICINAL PROPERTIES
Plant pacifies vitiated vata, kapha, inflammation, rheumatic arthritis, sprains, edema, neuralgia, colic, diarrhea, wounds and gouty arthritis. 
Useful part : Root, Leaves, Fruits Seeds.