- The
canvasback (
Aythya valisineria) is a
species of
diving duck, the
largest found in
North America. Scottish-American
naturalist Alexander Wilson described...
- The
lesser scaup (
Aythya affinis) is a
small North American diving duck that
migrates south as far as
Central America in winter. It is
colloquially known...
- the
shallower regions. Najas, Hydrilla, Ceratophyllum, Potamogeton,
Vallisneria (eelgr****, tape gr**** vallis) and
Charales are the
species of submerged...
-
Pistia stratiotes,
Ottelia alismoides,
Lemna minor,
Potamogeton crispus,
Vallisneria spiralis,
Hydrilla verticillata,
Ipomoea aquatica (syn. I. reptans),...
- septangulare),
Eurasian Water ****oil (Myriophyllum ****atum),
American Vallisneria (
Vallisneria americana),
Isoetes sp. and
Dwarf Pondweed (Potamogeton pusillus)...
- by a rich
floating and
submerse flora (Myriophyllum, Ceratophyllum,
Vallisneria,
under the water;
Nymphaea alba,
Nuphar lutea,
Trapa natans,
Alisma plantago...
