Botanical Survey of India | Flora of India

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Cabomba Aubl.

Herbs, perennial, slender, completely submerged, except during flowering; roots adventitious in groups at lower nodes of stems trailing through mud. Leaves dimorphic, petiolate; principal leaves opposite, some small, alternate; submerged leaves opposite or ternate, palmately divided at the summit of petiole into 3 - 9 parts; each part dividing 2 - 3-chotomously several times into many long, narrow segments forming a dissected blade, flabellate in outline; floating leaves when present alternate, peltate. Flowers white to yellow or purple, emerged above water, on peduncles of unequal length. Sepals 3, slightly connate at base. Petals 3, clawed and often auriculate, slightly connate at base. Stamens 3 - 6, without distal sterile appendages; microsporangia lateral to abaxial; pollen anasulcate. Carpels 1 - 4, each with 3 pendulous ovules in laminar position. Pods coriaceous, usually 3-seeded; seeds covered with hygroscopic hairs.

Tropical and temperate regions of America; ca 7 species, one introduced in India.

Literature. FASSETT, N. C. (1953) A monograph of Cabomba. Castanea 18: 116 - 128. MITRA, R. L. (1990) Cabombaceae. In: Fasc. Fl. India 20: 3 - 7. ORGAARD, M. (1991) The genus Cabomba (Cabombaceae)- a taxonomic study. Nord. J . Bot. 11: 179 - 203, ff. 1 - 10. SCHNEIDER E. L. & J. M. JETER (1982) Morphological studies on the Nymphaeaceae XII. The floral biology of Cabomba caroliniana. Amer. J. Bot. 69: 1410 - 1419.

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