Vallisneria gigantea Graebn.


Tufted stoloniferous aquatic perennial herb, the stolons rooting at the nodes. Leaves basal, strap-like, to 3 m long and 4 cm wide but mostly smaller. Stamens 2. Fruits drawn to the substrate by the spiralling stem. Grows in still or flowing water to 7 m deep. In gardens it is used in ponds but also used in cold and warm-water aquaria.


[V. spiralis of authors not L.]

This species is in need of revision. It encompasses a range of variation including the cultivar 'Torta' ['Contorta'] with tightly spiralled leaves and plants that are possibly hybrids. Sometimes available in horticulture asV. spiralis and possibly V. denseserrulata.

Source: Spencer, R. (2005). Hydrocharitaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Lilianae
order      Alismatales
family       Hydrocharitaceae
genus        Vallisneria L.