| Family | : Arecaceae |
| Genus | : Calamus |
| Species | : tenuis |
| Author | : Roxb. |
| Location | : Kaindya Egojyachari VCF, Balukhali., Rangamati Sadar, Rangamati, Bangladesh. |
| Latitude: 22° 29' 495" N; Longitude: 92° 10.11' 113" E | |
| Accesssion No. | : 64892 |
| Collector | : Joyanta Chardra Roy,Raziur Rahman & Kamrul Islam. |
| Collection Date | : 09-03-2016 |
| Note | : Herb; fruit greeish; 2-3 m long. Very rare. |
