| Collector | Holm-Nielsen, L. B. |
| Number | 2211 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | GUAYAS |
| County | |
| Locality | Low mountain NE of Chanduy. Rocky and sandy area with ravines. |
| Coordinates | 2° 21' S 80° 30' W |
| Minimum elevation (m) | 70 |
| Maximum elevation (m) | 205 |
| Start date | 1973/03/19 |
| End date | 1973/03/19 |
| Family | Asteraceae |
| Identification | Porophyllum ruderale (Jacq.)Cass. |
| Determined by | Robinson, H. (US), 2000. |
| Identification qualifier | |
| Field notes | Erect herb, flowers yellow, ugly tasting. |
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