Perennial herb, hydrophyte. Fronds spherical to ellipsoid, 0.5-1.5 x 0.4-1.2 mm, upper surface shiny, bright green, with 1 basal, lateral, funnel-shaped budding pouch; stomata 10-100. Roots absent. Flowering cavity in upper surface of frond. Inflorescence of 1 female and 1 male flower, without a membranous sheath. Ovary with 1 locule. Seeds 0.4-0.5 x 0.4 mm, globose.
A water plant. It is like a greenish tinge on the water surface. The vegetative part is less than 1 mm long. It is inflated. It is rounded and with 1 side pocket. It does not have roots. The flower breaks through the tip part of the vegetative body. It does not have a spathe or sheath like structure around it. This is made up of one female flower and one male flower.
Perennial, aquatic herb. Roots absent. Fronds floating, spherical to ellipsoid, 1.0-1.3 x as long as wide, biggest width below water surface, shiny and bright green on upper surface, with 10-100 stomata.
Aquatic herb. Fronds globoid to ovoid, 1.0-1.5 times as deep as wide, greatest width below water surface, intensely green on upper side, with 10-100 stomata.
Minute, floating aquatic forming colonies, without roots.