United States, Colorado, Alamosa, Horseshoe Lake (one of the San Luis Lakes)
37.6678033 -105.7042662 +-5000m. WGS84
I plotted the UTM east of San Luis Lake on an unnamed lake. There are a handful of unnamed lakes in this area so I increased the CV to 5 to make sure the correct lake is covered. RA
Alisma gramineum, det. Robert R. Haynes 1995. Originally described as A. brevipes Greene.