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Electronic Flora of South Australia genus Fact Sheet

Family: Hydrocharitaceae
Vallisneria

Citation: L., Sp. Pl. 1015 (1753).

Derivation: After Antonio Vallisnieri, 1661-1730, an Italian doctor and botanist.

Synonymy: Not Applicable

Common name: None

Description:
Fresh water, submerged perennials with a stolon; leaves in tufts along the stolons or alternate or opposite along them, linear, strap-shaped, glabrous.

Flowers dioecious, within a spathe; male flowers small and numerous in a head, becoming detached and free-floating, with 3 sepals and no petals; female flowers solitary, with 3 sepals and 3 petals; stamens 2 or 3, the filaments partly united; ovary with 3 placentas, which are often obscure, and 3 sessile stigmas.

Fruit narrow-cylindrical, many-seeded.

Distribution:  6-10 species from the tropics and subtropics; 3 in Australia.

Biology: No text

Author: Prepared by J.P. Jessop


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