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The spines are yellow to red. The fruits are densely woolly, giving the common name cotton top cactus. The tendency of the cactus to cluster causes it to also be called many-headed barrel cactus. [2] They have a reputation for being difficult in cultivation, and are rarely seen in cactus collections.
The colloquial names for echinacea are "Kansas niggerhead" and "Wild niggerhead". [citation needed] The cotton-top cactus (Echinocactus polycephalus) is a round, cabbage-sized plant covered with large, crooked thorns, and used to be known in Arizona as the "niggerhead cactus".
Espostoa lanata is a columnar cactus. It looks like Cephalocereus senilis (the Old Man of Mexico) : it is a densely hairy species, covered by a warm woolly coat and well adapted to high altitudes. It is widespread in its habitat and quite variable in size and spines, and for this reason it has received several names. [2]
Flowers appear at the top of the plant only after many years. The barrel cactus can live to be over 100 years old. Barrel cactus buds typically start to bloom in April with a bright yellow or orange flower. Pink and red varieties also exist but occur less frequently. The flowers only appear on the very top of the plant.
The Sonoran Desert. The Sonoran Desert is a North American desert and ecoregion which covers large parts of the southwestern United States and of northwestern Mexico. With an area of 260,000 square kilometers (100,000 sq mi), it is the hottest desert in Mexico.
Christmas cactus plants are readily available at grocery stores and florists as festive holiday houseplants. But sometimes holiday decorating and cats can be a troublesome combination.
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