Persicaria decipiens
Perianth without glands, pink. Flowers slightly crowded in rather slender spikes which are often paniculate and c. 5 cm long. Stems erect or procumbent, 30–50 cm high. Widespread. In or near water. Fl. summer. Slender Knotweed
Perianth without glands, pink. Flowers slightly crowded in rather slender spikes which are often paniculate and c. 5 cm long. Stems erect or procumbent, 30–50 cm high. Widespread. In or near water. Fl. summer. Slender Knotweed