Persicaria hydropiper (L.) Delarbre [ Polygonum hydropiper L.]
no HD illustration available (m1)
Persicaria hydropiper (L.) Delarbre [ Polygonum hydropiper L.] [Polygonaceae]
V.L. Komarov (Komorov), Fl. URSS, vol. 5 : p. 659, t. 45, fig. 5 (1934-1964)