Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Emergent freshwater herb, attached to substrate, stolons absent; flowers bisexual. Leaves all basal, petiolate; lamina with veins prominent. Flowers of one or two kinds (see notes under O. ovalifolia), solitary at the apex of a stout stalk, subtended by united floral bracts; perianth of 2 whorls of 3 segments each, the inner whorl white or yellow, sometimes dark red-purple at base, larger than outer whorl; stamens 6–15; styles 3–15, each with a 2-lobed stigma. Fruit flask-shaped or ellipsoid, basal part of perianth persistent.

About 40 species in tropical and subtropical regions; 2 species occurring in Australia, 1 in Victoria.

Source: Conn, B.J. (1994). Hydrocharitaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
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life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Alismatales
Higher taxa
genus Ottelia
Subordinate taxa