| Collector | Larsen, K. |
| Number | 42842 |
| Collected with | S. S. Larsen, S. S. Renner, C. Niyomdham, W. Ueachirakan & P. Sirirugsa |
| Country | Thailand |
| Subpart | SONGKLA |
| County | |
| Locality | Khao Nam Kang,Na Thawee S of Chana |
| Coordinates | 6° 45' N 100° 43' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 150 |
| Start date | 1992/06/13 |
| End date | 1992/06/13 |
| Family | Apocynaceae |
| Identification | Alstonia angustifolia Miq. |
| Determined by | Middleton, D. (L), 1996. |
| Identification qualifier | |
| Field notes | "Shrub c 2 m, branches stiff, fingerthick; flowers yellowish-green" |
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