| Collector | Balslev, H. |
| Number | 11757 |
| Collected with | Prateep Panyadee & Supalak Pumikong |
| Country | Thailand |
| Subpart | Nakhon Si Thammarat province, Tha Sala district. |
| County | |
| Locality | Walailak University campus, adjacent to herbarium. Nature trail, Wildlife Breeding Center, Botanical park. Secondary, evergreen, dry forest on previous rubber plantation abandoned ca 60 y ago. |
| Coordinates | 8° 38' 18.29'' N 99° 52' 47.58'' E |
| Minimum elevation (m) | 15 |
| Maximum elevation (m) | 15 |
| Start date | 2026/06/23 |
| End date | 2026/06/23 |
| Family | Arecaceae |
| Identification | Calamus palustris Griff. |
| Determined by | |
| Identification qualifier | |
| Field notes | Liana palm, cirrate, climbing to 8 m; lvs 10–15; petiole 15 cm; rachis 195–250 cm, incl cirrus; leaflets 15 per side, in groups of 2–3, projecting in different directions; inflorescence emerging near the top; peduncle 43 cm long; rachis 140 cm w 9 partial inflorescences, each one with up to 5 branches; rachilla up to 21, each one to 5 cm long. |
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