Name that plant

Subject: Name that plant-in Amano

> On page 24 of Amano's book, Nature Aquarium World, there's a pla
> background that I have but can't name. It's the long stringy gre
> with short spiky leaves that is curving toward the center of the
> Can anyone name that plant? 

Looks like Mayaca fluviatilis to me.

Karen Randall
Aquatic Gardeners Assoc.
Boston, MA