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Cylindropuntia was formerly treated as a subgenus of Opuntia, but have now been separated based on their cylindrical stems (Opuntia species have flattened stems) and the presence of papery epidermal sheaths on the spines (Opuntia has no sheaths). [1]
Ferocactus wislizeni, the fishhook barrel cactus, also called Arizona barrel cactus, candy barrel cactus, and Southwestern barrel cactus, is a species of flowering plant in the cactus family Cactaceae, native to northern Mexico and the southern United States. It is a ball-shaped cactus eventually growing to a cylindrical shape, with spiny ribs ...
The cactus bears funnel-shaped flowers that are maroon outside, and bright yellow inside, with red tints and yellow centers on the side that faces the sun, measuring 3 to 6 cm (1.2 to 2.4 in) in length and 4 to 6 cm (1.6 to 2.4 in) in diameter. The fleshy, hollow fruits are spherical, yellow, and about 3 cm (1.2 in) long.
Some species of barrel cactus reach over 1 metre (3.3 ft) in height at maturity, and have been known to reach 3 metres (9.8 ft) in some regions. The ribs are numerous and pronounced, and the spines are long and can range in color from yellow to tan to red, depending on the age of the plant and the species.
Emory's Barrel Cactus, Biznaga-barril de Emory: Mexico (Sonora, Sinaloa and Baja California Sur) and in the United States (Arizona). Ferocactus fordii: Baja California in Mexico. Ferocactus gracilis H.E.Gates: Fire Barrel Cactus: Mexico. Ferocactus herrerae: Twisted Barrel Cactus: Mexico (Sinaloa, Sonora) Ferocactus johnstonianus Britton & Rose
There are three to eight mostly sharp-edged, straight ribs, which are later tuberous. The single protruding central spine, which can also be missing, is yellowish to dark brown and is up to 3 cm (1.2 in) long. The three to eight straight, whitish to yellowish marginal spines are up to 2 cm (0.79 in) long. The upper ones are very short.
This cactus has a spherical or cylindrical shape, a green or bluish color, and a waxy texture. It grows up to 15 centimeters tall by 12 wide. There are several white, tan, or black radial spines and a few brown, black, or reddish central spines on each areole. The radial spines are up to 2 centimeters long, the central spines sometimes a bit ...
The 12 to 15 radial spines are needle-shaped, bright, brown or white and up to 4 inches (10 cm) long. The 1 to 3 central spines are longer and stronger, straight and curved like a hook at the tip. The flowers are orange, dark yellow, magenta, or violet [3] with a red center, about 7 inches (18 cm) long. This cactus blooms in late summer.