Participant Info

Species

Potamogeton natans

Family

Potamogetonaceae

CommonName

floating pondweed

Presence

Yes

Status

native

EarliestDate

1988

LatestDate

2021

Ecosystem

aquatic, basin, montane

Geobotanical

SSanjuans, UBasin

Counties

Alamosa, Conejos, Rio Grande

Passes

WildlifePreserves

Alamosa

Other Localities

Alamosa (town)

PhotoRecords

YES Rich Haswell: Rio Grande Co, eddy of an irrigation ditch behind the Sunflour Café on Hwy 285 1 mile N of Monte Vista 28 July 2021

Comments

There are only five Watershed locations for Potamogeton natans: one from the Rio Grande floodplain in the town of Alamosa; two from the Alamosa NWR area; one from a flowing irrigation canal near Monte Vista; and one from De Herrera Lake 23 miles W of Conejos. Note that his last is the same location for Potamogeton epihydrus. This pondweed is present, in a scattered fashion, in all USA regions except for the southwest quarter of the nation. Its farthest extension down the Rio Grande drainage is Rio Arriba, Taos, and Sandoval counties of New Mexico.

Annotation