| Collector | Henderson, A. |
| Number | 3625 |
| Collected with | Bui Van Than & Nguyen Quoc Dat |
| Country | Vietnam |
| Subpart | Binh Thuan |
| County | |
| Locality | Tanh Linh District, Nui Ong Nature Reserve, forested area |
| Coordinates | 11° 1' 11'' N 107° 42' 35'' E |
| Minimum elevation (m) | 158 |
| Maximum elevation (m) | 158 |
| Start date | 2009/10/21 |
| End date | 2009/10/21 |
| Family | Arecaceae |
| Identification | Calamus tetradactylus Hance |
| Determined by | |
| Identification qualifier | |
| Field notes | Stems clustered, 2 m long, 0.5 cm diameter with sheaths. Sheaths gray-green with scattered, yellowish spines; petioles 20 cm long; rachis 50 cm long with 10 pinnae per side in distant clusters of 2 pinnae, spreading in different planes, the apical pair joined at their bases, grayish abaxially. Local name "may tre" |
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