Utricularia graminifolia belongs to the bladderwort family. All the plants in this family are insect eating, perennial water and marsh plants. Bladder traps are a unique feature of this family, which Utricularia graminifolia forms after a short period of time in the aquarium. The species name means 'with grass like leaves' and the fresh green leaves after a short period of time form a pretty mat which looks like a lawn. Utricularia graminifolia is therefore an ideal foreground plant.
(text from http://www.tropica.com)