Stock Photo - Roots, leaves and flowers of coco-grass, purple nut sedge, red nut sedge, Cyperus rotundus L. . Color-printed woodblock engraving by Kan'en Iwasaki from Honzo Zufu, an Illustrated Guide to Medicinal Plants, 1884. Iwasaki (1786-1842) was a Japanese botanist, entomologist and zoologist. He was one of the first Japanese botanists to incorporate western knowledge into his studies.

Stock Photo: Roots, leaves and flowers of coco-grass, purple nut sedge, red nut sedge, Cyperus rotundus L. . Color-printed woodblock engraving by Kan'en Iwasaki from Honzo.

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