Caption:
Large flowered barrenwort or bishop's hat, Epimedium grandiflorum. Native to Japan and Korea, introduced by German botanist Philipp Franz von Siebold. Large flowered barren-wort, Epimedium macranthum. Handcoloured lithograph from Joseph Paxtons Magazine of Botany, and Register of Flowering Plants, Volume 5, Orr and Smith, London, 1838.