Echinopsis oxygona (Link) Zucc. ex Pfeiff. & Otto [ Echinopsis multiplex Pfeiff. & Otto]
no HD illustration available (m1)
Echinopsis oxygona (Link) Zucc. ex Pfeiff. & Otto [ Echinocactus eyriesii Turpin] [Cactaceae]
L.K.G. Pfeiffer, F. Otto, Abbild. Beschr. Cact. (Coloured version), vol. 1 : p. 4, t. 4 (1839)