| Collector | Terneus, E. |
| Number | 335 |
| Collected with | D. Jacobsen |
| Country | Ecuador |
| Subpart | COTOPAXI |
| County | |
| Locality | Parque Nacional Cotopaxi, laguna de Limpiopungo |
| Coordinates | 0° 36' 51'' S 78° 28' 23'' W |
| Minimum elevation (m) | 3800 |
| Maximum elevation (m) | 3800 |
| Start date | 1999/05/13 |
| End date | 1999/05/13 |
| Family | Juncaceae |
| Identification | Juncus arcticus Willd. |
| Determined by | |
| Identification qualifier | |
| Field notes | Macrófita enraizada emergente, creciendo en el sector oriental de la laguna en zona pantanosa. Se presenta dominante en el sector. |