outlined bistort. vintage botanical sketch of persicaria bistorta. knotweed engraving. snakeroot, meadow plant. field

bistort knotweed outline snakeroot herb botanical plant vintage meadow botany branch contoured detailed drawing drawn engraving etching european field graphic handdrawn herbal illustration ink isolated leaf leaves line medical medicinal perennial retro sketch sketchy snakeweed stalk stem style vector white wild woodcut herbaceous