Pontederia cordata L.
Pontederiaceae
| Collection Number | Stevens, W. D 31029 |
| Collectors | W.D. Stevens, O.M. Montiel J., C. Davidson & S. Christoph |
| Identified By | W. D. Stevens (MO) |
| Source | C. Davidson |
| Date | 13 March 2011 |
| Country | Paraguay |
| department | Presidente Hayes |
| Location | 38.4 km NW end of Río Paraguay bridge on the Ruta Transchaco; open Copernicia swamp. 75 m elev. |
| Lat/Long | S 24 54 31 W 057 38 31 |
| Note | In standing water, fleshy, spikes erect, flowers pale blue, fading to purple. |