The Sago pondweed can be found in many water types and is indifferent for the waterquality and belong to the flloating leaf water plants. It occurs in oligo- (low nutrient content) as well as in eutrophic, slow flowing or still waters. It grows mostly on humic soils and requires water depths of 20 to 350 cm.
It is a permanently submerged, deciduous, highly branched plant with limp, filamentous leaves that grow up to 3 mm thick.
The plant forms 2-5 cm long spikey flowers from May to September. The waterplant may also be known from the synonym Stuckenia pectinata.