Menyanthaceae

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Annual or perennial herbs, often shortly rhizomatous. Leaves alternate radical or cauline, exstipulate, simple (in Australia), erect or floating; petioles winged at the base. Stems erect or floating, often stoloniferous. Inflorescence a fascicle or panicle (or, not in Victoria, a solitary flower or a raceme). Flowers regular, bisexual, sometimes heterostylous; sepals usually 5 (or 4, not in Victoria), free or basally united, persistent; corolla with a short tube and usually 5 (or 4, not in Victoria) spreading lobes, short-lived and deliquescent, corolla-lobes valvate or induplicate-valvate in bud, usually with entire or laciniate side-wings and a transverse fringe of hairs or papillae near the base; stamens alternating with corolla-lobes, attached at or near throat of tube, anthers 2-celled, linear-obloid, longer than the filaments, opening introrsely; ovary superior to semi-inferior, usually with 5 (or 4, not in Victoria) nectary lobes at the base, placentas 2–5, parietal, style simple, persistent, stigmas 2–5, each a papillate or laciniate lobe or wing. Fruit a capsule (or, not in Victoria, fleshy), ellipsoid to globular, indehiscent or apically 4-valved. Seeds few to numerous, endospermic.

6 genera with c. 60 species, throughout tropical to cold-temperate regions of the world; 3 genera native in Australia.

Source: Aston, H.I. (1999). Menyanthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Andre Messina, 2018-08-06
 
References

Aston, H.I. (1973). Aquatic plants of Australia, Melbourne University Press, Melbourne.

 
Hero image
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
Higher taxa
family Menyanthaceae
Subordinate taxa
genus Nymphoides
genus Ornduffia