no HD illustration available

6 370138 Echinocereus polyacanthus Engelm. Engelm. [Echinocereus durangensis Rumpler]
K.M. Schumann, M G├╝rke, F. Vaupel, Bl. Kakt., vol. 3 : t. 179 (1900-1905) [J. Pohl]
no thumbnail 350px available no thumbnail 200px available