knotweed or polygonum aviculare. on white

alternative antimicrobial antiseptic authentic aviculare aviculareisolated background birdweed botanical botany buckwheat carotene crawls diuretic dock edible flora foliage fresh grass green growth healthy herb herbal infusion ingredient invasive isolate isolated knotgrass knotweed lowgrass medicinal medicine nature organic phytotherapy pigweed plants polygonum stem tannins useful white wild