| Collector | Christensen, H. M. |
| Number | 1690 |
| Collected with | |
| Country | Malaysia |
| Subpart | SARAWAK |
| County | |
| Locality | 2nd division, Lubok Antu District, river Delok. Open disturbed area near Nanga Sumpa. |
| Coordinates | 1° 20' N 112° 10' E |
| Minimum elevation (m) | 150 |
| Maximum elevation (m) | 150 |
| Start date | 1993/07/04 |
| End date | 1993/07/04 |
| Family | Poaceae |
| Identification | Centotheca lappacea (L.)Desv. |
| Determined by | Laegaard, S. |
| Identification qualifier | |
| Field notes | Grass. Uses: Medicinal, against tooth ache, the small tubers are pounded and put in the hole in the tooth, and the pain will disappear. Name in Iban language: Ruding Mawang. |