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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]
The stems are armed with clusters of up to about 10 red to pink [10] spines, which may be 3 cm (1.2 in) long [10] and are barbed and sharp enough to easily penetrate leather gardening gloves. [12] The stems and fruits also have many spines or "glochids" about 1 mm (0.04 in) long [ 10 ] that can detach and stick in the skin.
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.
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
While a Thanksgiving cactus has serrated leaves, a Christmas cactus has more rounded ones, like the one pictured above. Another way to tell the difference is to look at the stems of the Christmas ...
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.
Cylindropuntia leptocaulis, the desert Christmas cactus, desert Christmas cholla, pencil cactus, or tasajillo, is a species of cholla cactus. Distribution and habitat