Thunbergia laurifolia, the
laurel clockvine or
blue trumpet vine, is native to India (Starr
et al., 2003) and the Indomalaya ecozone, the species occurs from Indochina to Malaysia (Schonenberger, 1999). It is locally known as
kar tuau in Malaysia and
rang jeud (รางจืด) in Thailand (Chan & Lim, 2006).
(Wikipedia)