polygonum aviculare or common knotgrass is a plant related to buckwheat and dock

also aroma authentic aviculare background birdweed botanical botany buckwheat called closeup color common creeps dock edible flora foliage fresh garden grass green growth healthy herb herbal homeopathy knotgrass knotweed leaf life lowgrass medicinal medicine natural nature outdoor pigweed plant polygonum prostrate related spring summer tannins tree