| Collector | Balslev, H. |
| Number | 11759 |
| Collected with | Prateep Panyadee & Supalak Pumikong |
| Country | Thailand |
| Subpart | Nakhon Si Thammarat province, Ron Phibun district. |
| County | |
| Locality | Namtok Young NP. Stunted montane forest on ridges and tall forest with many tree-ferns and bamboos in gulleys. |
| Coordinates | 8° 14' 7.86'' N 99° 48' 18.9'' E |
| Minimum elevation (m) | 895 |
| Maximum elevation (m) | 895 |
| Start date | 2026/06/24 |
| End date | 2026/06/24 |
| Family | Arecaceae |
| Identification | Calamus |
| Determined by | |
| Identification qualifier | |
| Field notes | Cirrate liana palm; stem 6–8 m long, 3 cm diam incl sheaths; lvs 14–15; petiole 40–50 cm; rachis 2 m; cirrus 1 m; pinnae 50–60 per side, regularly inserted in one plane; infl inserted 1 m from top of stem, c 100 cm long. |
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