Persicaria bistorta (L.) Samp. [ Polygonum bistorta L.]
no HD illustration available (m1)
Persicaria bistorta (L.) Samp. [ Polygonum bistorta L.] [Polygonaceae]
V.L. Komarov (Komorov), Fl. URSS, vol. 5 : p. 675, t. 47, fig. 2 (1934-1964)