Cryptocoryne lingua

The habitats and sites where this species occurs are threatened by factors which affect all plants occurring in flowing water bodies in the region, notably forest clearance, urbanisation, agricultural intensification and the secondary effects of these factors, particularly increased turbidity, pollution and casual habitat degradation. All known populations occur within or adjacent to areas which have been cleared for cultivation and a number of sites are very vulnerable to expansion of existing settlements. Installation of a weir at one site has stabilised water levels with the result that the population has become covered with a layer of sediment and is rapidly declining. At least two of the populations are in dense urban areas and unlikely to survive.

There are no conservation actions in place specifically for this species. It is not known from any protected areas. There is a need to establish an up-to-date assessment of the conservation status of known populations, as well as to survey other potentially suitable habitat in the area to try to find more populations.