| Collector | Madsen, J. E. |
| Number | 63479 |
| Collected with | |
| Country | Ecuador |
| Subpart | GUAYAS |
| County | |
| Locality | Isla Puná. From midway Puná Nueva - Zapote and km 0-3 inland. Savanna and dry forest. Further beaches and salt marsh. |
| Coordinates | 2° 45' S 79° 54' W |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1987/05/29 |
| End date | 1987/05/29 |
| Family | Onagraceae |
| Identification | Ludwigia leptocarpa (Nutt.)Hara |
| Determined by | Zardini, (MO), 1992. |
| Identification qualifier | |
| Field notes | Herb, 30 cm high. Flowers yellow. On sandy beach. |
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