Wild Utrics?

[rsivertsen]

The first one is Elodea, a native aquatic plant, the next ones are European Myrophyllium, and they are invasive exotics that have been declared Nuisance Weeds. Many recreational lakes and ponds have pictures of these plants asking people to remove them when they can; unfortunately, most people can't tell the difference between these and native Utrics. One site near me lost an entire population of U. radiata due to a massive effort to get rid of the Myrophyllium.

Some plants are also loaded with small hydras which can give them a false appearance of a Utric. - Rich

 

[gtx75]

loss of an entire population of utrics...? thats a loss, they are an interesting species as well

 

[Drosera36]

What you are describing as covering the surface of the lake are probably duckweed. They have two or three little leaves and little roots hanging out underneath them. They are just a common pond plant.

http://canalphotos.org/6-13_canal_duckweed-Edit_rz.jpg

http://aquaplant.tamu.edu/images/plant_photos/floating_plants/drawings/common_duckweed_drw.gif

Here's what one type of aquatic Utricularia looks like (with some duckweed):

http://i23.photobucket.com/albums/b394/bamaud/CobbsHill/DSCN4664.jpg

I took that pic at a site near my home.

-Ben

 

[Adam]

I'd say the first is anachris, the 2nd looks A LOT likeU machrozna or however its spelled, and lastly im not sure