This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Stems slender, coated with gelatinous matter, branching. Leaves petioled, peltate, the floating ones small, entire; submerged ones opposite, palmately dissected into numerous capillary segments. Flowers small, white or yellow. Sepals and petals 3. Stamens 3-6; filaments slender; anthers ex-trorse. Carpels 2-4. Stigmas small, terminal; ovules commonly 3, pendulous. Fruit coriaceous, indehiscent, about 3-seeded. [Guiana name.]
A genus of 4 species, natives of the warmer parts of America. Type species: Cabomba aquatica Aubl.
Cabomba caroliniana A. Gray, Ann. Lyc. N. Y. 4: 47. 1837.
Stem several feet long, branching. Submerged leaves opposite or sometimes verticillate, petioled, 1'-2' broad, centrally peltate, repeatedly divided; floating ones alternate or opposite, linear-oblong, 6"-10" long; flowers long-peduncled from the upper axils, 6"S" wide, white, or yellow at base within; petals obovate; ripened carpels 3, separate, flask-shaped.