Okay, I was right in pursuing emergent plants.
As it is kindof that.
I found this and I think it's the one.

Hippuris vulgaris
Mare's Tail
http://www.korner.cz/foto/Vodn%ED/Hi...20vulgaris.jpg
http://edu.taivalkoski.fi/tk-koulut/.../Vesikuusi.jpg

Mare's Tail (water milfoil family) found in central North America,
grows partially submerged or on marshy land. Short leaves, in whorls
of 6 to 12, are rigid when emergent, limp when submerged. Spreads
from rootstock.

Bill's picture is here
http://community.webshots.com/user/bbris




kathy :-)
algae primer
http://hometown.aol.com/ka30p/myhomepage/garden.html