| Collector | Lojtnant, B. |
| Number | 13583 |
| Collected with | Molau, U. |
| Country | Ecuador |
| Subpart | PASTAZA |
| County | |
| Locality | Around the village Montalvo on the Río Bobonaza. Pastures with scattered trees, along the river. |
| Coordinates | 2° 5' S 76° 58' W |
| Minimum elevation (m) | 250 |
| Maximum elevation (m) | 250 |
| Start date | 1979/05/21 |
| End date | 1979/05/21 |
| Family | Malvaceae |
| Identification | Malachra ruderalis GŸrke |
| Determined by | Fryxell, P. (TAES), 1992. |
| Identification qualifier | |
| Field notes | Erect herb, ca 1.5 m high. Corolla yellow. |
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