扁基荸荠(原变种) bian ji bi qi (yuan bian zhong)

Eleocharis uniglumis (Link) Schultes subsp. fennica (Palla ex Kneucker & G. Zinserling) Vestergren.

Perianth bristles absent.

River margins, streams in valleys, wet places, coastal habitats; near sea level to 3100 m. Heilongjiang [Kazakhstan, Mongolia, Russia; Europe].