484 KB Utricularia species Bladderwort B ladderworts are submersed free-floating plants. There are about 200 species in the world, ranging in size from a few inches to several feet long. Tiny bladders attached to the leaves trap and digest very tiny animals. A ll bladderworts are rootless . They have main stems from which lacy, often complex leaves grow.
Flowers are on long stalks that emerge several inches above the water.
The carnivorous bladders are attached at regular intervals along the linear leaf segments. 53 KB Drawing - 530 KB Vallisneria americana Tape grass T ape grass is a submersed plant that spreads by runners and sometimes forms tall underwater meadows. Tape grass is common in still and fast-flowing waters. T ape grass leaves arise in clusters from their roots. They are about one inch wide and can be several feet long.