knotgrass polygonum aviculare green summer background

alternative antiinflammatory antimicrobial antiseptic astringent authentic aviculare background birdweed botanical botany bundle carotene color creeps edible extract flora floral foliage grass green growth healing healthy herb herbal knotgrass knotweed knotweedpolygonum leaf life low lowgrass medicinal medicine natural nature ngreen nobody organic outdoor outdoors physiotherapy phytotherapy plant polygonum raw remedy science shoots stem summer sunny tannins useful warm weed wild