| Collector | Boyce, P.C. |
| Number | 1111 |
| Collected with | |
| Country | Thailand |
| Subpart | Phitsanulok |
| County | |
| Locality | N 12, nam Tok Chat trakan National Park. Dry deciduous oak forest on sand stone. |
| Coordinates | 17° 18.18' N 100° 40.69' E |
| Minimum elevation (m) | 450 |
| Maximum elevation (m) | 450 |
| Start date | 1996/09/19 |
| End date | 1996/09/19 |
| Family | Rhamnaceae |
| Identification | Ziziphus oenopolia (L.) Mill. |
| Determined by | |
| Identification qualifier | |
| Field notes | Small tree to 3 m. innovations variously rusty tomentose. Mature leaves with lamina deep green above, paler beneath. Older twigs dark brown. Flowers greenish. |
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