| Collector | Larsen, K. |
| Number | 43909 |
| Collected with | Supee S. Larsen, Chr. T. Norgaard, K. Pharsen, P. Puudjaa, and W. Uerchirakan |
| Country | Thailand |
| Subpart | SONGKHLA |
| County | |
| Locality | Khao Chum Sak at Hat Yai. Secondary low forest, open vegetation, evergreen species mainly. |
| Coordinates | 7° 0' N 100° 20' E |
| Minimum elevation (m) | 150 |
| Maximum elevation (m) | 150 |
| Start date | 1993/10/22 |
| End date | 1993/10/22 |
| Family | Asclepiadaceae |
| Identification | Cynanchum ovalifolium Wight |
| Determined by | Middleton, D. (HUH), 2000. |
| Identification qualifier | |
| Field notes | Thin herbaceous climber in fruit only; seeds brown. |
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