| Collector | Christensen, H. M. |
| Number | 1111 |
| Collected with | |
| Country | Malaysia |
| Subpart | SARAWAK |
| County | |
| Locality | 2nd division, Lubok Antu District, river Delok. Cultivated in garden at Rumah Jambu |
| Coordinates | 1° 20' N 112° 10' E |
| Minimum elevation (m) | 150 |
| Maximum elevation (m) | 150 |
| Start date | 1993/06/11 |
| End date | 1993/06/11 |
| Family | Asclepiadaceae |
| Identification | Marsdenia tinctoria (Roxb)R. |
| Determined by | Christensen, H. |
| Identification qualifier | |
| Field notes | Climper, leaves colors hands bluish black when crushed and rubbed between the hands. Uses: The leaves are used to dye textile dark blue. Name in Iban language: Tarum Akar. |
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