| Collector | Madsen, J. E. |
| Number | 36835 |
| Collected with | |
| Country | Ecuador |
| Subpart | CHIMBORAZO |
| County | |
| Locality | Huigra, about 1 km N of the town, by the river. Dry vegetation varying with fertile area owing to springs. Shrub with single trees and Armatocereus. Lots of epiphytes. |
| Coordinates | 2° 12' S 78° 58' W |
| Minimum elevation (m) | 1250 |
| Maximum elevation (m) | 1250 |
| Start date | 1981/12/01 |
| End date | 1981/12/01 |
| Family | Polygonaceae |
| Identification | Polygonum hydropiperoides Michaux |
| Determined by | J. Brandbyge, 1988 |
| Identification qualifier | |
| Field notes | Herb, until 20 cm tall. Petals white to pink. |
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