| Collector | La-ongsri, W. |
| Number | 4438 |
| Collected with | P. Punyachan, T. Pingyot, T. S. Satatha |
| Country | Thailand |
| Subpart | Lampang |
| County | |
| Locality | Kiew Lom, Tam Pha Thai National Park, Ngao district |
| Coordinates | |
| Minimum elevation (m) | 280 |
| Maximum elevation (m) | 280 |
| Start date | 2016/01/12 |
| End date | 2016/01/12 |
| Family | Convolvulaceae |
| Identification | Merremia hederacea (Burm. f.) Hallier f. |
| Determined by | |
| Identification qualifier | |
| Field notes | Climber on limestone in mixed-deciduous forest. Flower yellow. Fruit green. |