| Collector | Kvist, L. P. |
| Number | 40563 |
| Collected with | |
| Country | Ecuador |
| Subpart | ESMERALDAS |
| County | |
| Locality | Río Cayapa, Zapallo Grande. With canoe the river was followed 5 km. downstream from the village. The collections were done on the riverbank and around houses. |
| Coordinates | 0° 49' N 78° 57' W |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 100 |
| Start date | 1982/06/30 |
| End date | 1982/06/30 |
| Family | Asteraceae |
| Identification | Porophyllum ruderale (Jacq.)Cass. |
| Determined by | Robinson, H. |
| Identification qualifier | |
| Field notes | Herb, 1 m tall. Commonly cultivated of both indians and negroes. Nom. Vern.: Petic tape (Cayapa); Use: A good remedy for headache. Prep.: The leaves are macerated in cold water and applied to the head. |
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