equisetum hyemale ,rough horsetail, scouring rush, scouringrush horsetail

equisetum hyemale rough horsetail scouring rush scouringrush south africa snake grass perennial herbaceous fern family equisetaceae quisetum beautiful botany decorative detail equisetum hyemale flora garden giganteum gigantium grass green hollow stem horse horsetail japanese jointed landscape landscaping leaf living fossil marsh medicinal plant natural nature nonflowering oriental pattern perennial puzzle puzzle relic rush scouring scouring-rush snake stalks stems stripes swamp water