| Collector | Henderson, A. |
| Number | 3546 |
| Collected with | Bui Van Thanh & Vien Xuan Chieu |
| Country | Vietnam |
| Subpart | Thua Thien-Hue |
| County | |
| Locality | A Luoi District, Sao La Nature Reserve, undisturbed forest on ridge on steep slopes, non-limestone area |
| Coordinates | 16° 4' 19'' N 107° 29' 52'' E |
| Minimum elevation (m) | 575 |
| Maximum elevation (m) | 575 |
| Start date | 2009/03/09 |
| End date | 2009/03/09 |
| Family | Arecaceae |
| Identification | Calamus gracilis Roxb. |
| Determined by | |
| Identification qualifier | |
| Field notes | Stems solitary, 4 m tall, 0.7 cm diameter with sheaths. Sheaths mottled gray-brown, with very few conical spines; petioles 15 cm long; rachis 32 cm long with 20 pinnae per side, tehse in remote clusters of to 6 pinnae, curled over at the apices. Sterile plant. DNA sample. v.n. "may" |
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