| Collector | Pongamornkul, W. |
| Number | 456 |
| Collected with | S. Watthana, R. Panya |
| Country | Thailand |
| Subpart | Chiang Mai |
| County | |
| Locality | Mae Kam Pong, Mae On District |
| Coordinates | |
| Minimum elevation (m) | 1000 |
| Maximum elevation (m) | 1000 |
| Start date | 1999/06/20 |
| End date | 1999/06/20 |
| Family | Thymelaeaceae |
| Identification | Aquilaria crassna Pierre ex Lecomte |
| Determined by | |
| Identification qualifier | |
| Field notes | Tree 20-30 m high; in hill evergreen forest. Inflorescence umbel on terminal petal greenish; stamen yellow. Fruits capsule; 2 seed pubescent. |