About Cereus aethiops Haw.
Cereus aethiops Haw. typically grows in a shrubby form, is rarely branched, and reaches a maximum height of 2 meters. Its cylindrical shoots, colored dark bluish to dark green, grow upright or occasionally prostrate, and have a diameter of 2 to 4 centimeters. This cactus has seven to eight ribs that are divided into humps, and the areoles on these ribs are often almost black. It bears two to four black central spines that grow up to 2 centimeters long, plus nine to twelve radial spines that are gray with darker tips or fully black, reaching up to 10 millimeters in length. Its flowers are white to light pink and grow up to 20 centimeters long. Its fruits are egg-shaped, red, and up to 6 centimeters long. This species is distributed in the foothills of the Andes in northern and central Argentina.
