| Family | : Sterculiaceae |
| Genus | : Byttneria |
| Species | : aspera |
| Author | : Collebr. ex Wall. |
| Location | : Machalong Reserve Forest, Bagaichhari, Rangamati, Bangladesh. |
| Latitude: 23° 21.569' " N; Longitude: 92° 13.902' " E | |
| Accesssion No. | : 79380 |
| Collector | : Kowser et al |
| Collection Date | : 25-10-2017 |
| Note | : Climber; Fruit round surface spiny; Forest, Very rare. |
