| Collector | Pedersen, H.AE. |
| Number | 41901 |
| Collected with | K. Larsen, S. S. Larsen, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | PHITSANULOK |
| County | |
| Locality | "Phu Hin Rong Kla, 40 km E of Nakhon Thai; Lan Hin Poom. Sandstone plateau." |
| Coordinates | 17° 5' N 101° 7' E |
| Minimum elevation (m) | 1200 |
| Maximum elevation (m) | 1200 |
| Start date | 1990/12/11 |
| End date | 1990/12/11 |
| Family | Orchidaceae |
| Identification | Oberonia longirachis Seidenf. & H. Æ. Pedersen |
| Determined by | H. AE. Pedersen, 1993 |
| Identification qualifier | |
| Field notes | HOLOTYPE ! Epiphytic habit, growing (1 m above the ground) on the trunk of a small tree. Flowers and bracts white. |
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