| Family | Acanthaceae |
| Subamily | Thunbergioideae |
| Scientific name | Thunbergia grandiflora Roxburgh |
| Synonyms | Flemingia grandiflora Roxburgh ex Rottler; Pleuremidis grandiflora (Roxburgh) Rafinesque; Thunbergia cordifolia Nees |
| Common name | (English common name) Bengal clockvine, Bengal trumpet |
| (Japanese common name) Bengal yahazu kazura | |
| Distribution | China, Indonesia, Myanmar, Nepal, Bhutan, India |
| Reference | Thunbergia grandiflora Roxb. |
| Thunbergia grandiflora |
| February 2008 at Higashiyama Botanical Garden |
February 2008 at Higashiyama Botanical Garden |
February 2008 at Higashiyama Botanical Garden |