Potamogeton lucens L.

Material examined.

RUSSIA, Tyumen Reg. - Armizonsky distr. • 1.4 km E of Poloe; 55.7436°N, 67.7998°E; Lake Suponnoe, shallow water off the southeast shore; salinity of the water is 0.3 g /l; 30 Jul. 2019 .