Polygonum hydropiper
L.
Record number: 120274. Place of collection: Russia; Leningradskaya oblast; Ostrovki village, near; Neva river, bank (N59°47' E30°49'). Associated organism: Ustilago cordai.
Record number: 120352. Place of collection: Russia; Leningradskaya oblast; Pustyn’ka village, near. Associated organism: Sphacelotheca hydropiperis.