| Collector | Kerr, A.F.G. |
| Number | 15483 |
| Collected with | |
| Country | Thailand |
| Subpart | |
| County | |
| Locality | Kao Luang N. Sritamarat N4 |
| Coordinates | |
| Minimum elevation (m) | 1100 |
| Maximum elevation (m) | 1100 |
| Start date | 1928/04/29 |
| End date | 1928/04/29 |
| Family | Arecaceae |
| Identification | Calamus helferianus subsp. viridispinus (Becc. in Hook.)Henderson |
| Determined by | A. Henderson |
| Identification qualifier | |
| Field notes | Very common in evergreen forest. Vernacular name: Wai Sai |
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