Your support is critical to our success.
Dict. Hort. [Bois] 2: 804. 1898 Britton & Rose, Cactaceae, 3: 93, fig. 102. 1922
Work can be freely used for any purpose, even commercial one. Original author of image doesn't have to be mentioned under shared or derived work.
More about licenses and author rights.
BZ58 (Collectors: Luciano Battaia, Carlo Zanovello) Huasteca Canyon, Nuevo León, Mexico