| Collector | Staahl, B. |
| Number | 1824 |
| Collected with | Grignon, I., Navarrete, H. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | PASTAZA |
| County | |
| Locality | Chapetón on Río Bobonaza, ca. 8 km ESE of Canelos, primary and secondary rain forest. |
| Coordinates | 1° 38' 77° 40' |
| Minimum elevation (m) | 400 |
| Maximum elevation (m) | 450 |
| Start date | 1995/11/02 |
| End date | 1995/11/05 |
| Family | Olacaceae |
| Identification | Heisteria acuminata subsp. intermedia P. Jørg. |
| Determined by | Jorgensen, P.M. (MO), 2002 |
| Identification qualifier | |
| Field notes | Slender treelet 5 m, stem 5 cm diam., calyx red. |