| Collector | Gentry, A.H. |
| Number | 18553 |
| Collected with | et al. |
| Country | Peru |
| Subpart | Loreto |
| County | |
| Locality | Rio Nanay, near Morono Cocha, just N of Iquitos; inundated tahuampa, (submerged portions not included in heights) |
| Coordinates | 3° 38' 33'' S 73° 12' 45'' W |
| Minimum elevation (m) | 120 |
| Maximum elevation (m) | 120 |
| Start date | 1977/03/21 |
| End date | 1977/03/21 |
| Family | Marantaceae |
| Identification | Ischnosiphon puberulus Loes. |
| Determined by | L. Andersson |
| Identification qualifier | |
| Field notes | Coarse herb, flowers purple, bracts green |
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