| Collector | Thammarong, W. |
| Number | 4415 |
| Collected with | S. Rakarcha, S. Yokyo, S. Sittisuk, M. Tabut |
| Country | Thailand |
| Subpart | Sukhothai |
| County | |
| Locality | Ban Lu Tao, Mu 8, Si Samrong district |
| Coordinates | 17° 13' 2.69'' N 99° 32' 10.54'' E |
| Minimum elevation (m) | 160 |
| Maximum elevation (m) | 160 |
| Start date | 2023/11/30 |
| End date | 2023/11/30 |
| Family | Apocynaceae |
| Identification | Zygostelma benthamii Baill. |
| Determined by | |
| Identification qualifier | |
| Field notes | Bamboo forest with limestone. Climber on roadsides. Corolla greyish green outside, inside purplish red. |
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