| Family | : Arecaceae |
| Genus | : Calamus |
| Species | : longisetus |
| Author | : Griff. |
| Location | : Shita pahar Reserve Forest., Kaptai, Rangamati, Bangladesh. |
| Latitude: 22° 29' 495" N; Longitude: 92° 10.11' 113" E | |
| Accesssion No. | : 64893 |
| Collector | : Joyanta, Likhon & Kamrul |
| Collection Date | : 30-11--0001 |
| Note | : Herb; fruit-gray Rare. |