| Place of origin:
South of Arizona, United States; state of Sonora,
Mexico.
Description: Growing wild, the plant has
solitary and spherical stem, although it become cylindrical
with age, reaching between 1.5 and 2 m. high.
The ribs are quite thin, are between 22 and 32, bigger than
4 cm. and a little tuberculated in the beginning.
The areolas are distant and have white or brownish felt when
the plant is young; but they become naked with age.
Radial spines are between 3 and 6 cm. long, there are between
5 and 8, are radiated, unequal and somewhat curved.
The central, solitary spine, is very variable, somewhat flattened,
raised, curve and even folded, with the tip frequently uncinated
and of between 3 and 8 cm. long.
All spines are red or white and are marked by cross-sectional
bands.
The flowers are red color and up to 6 cm. long.
Growing tips: The species requires full
sun and it does not resist frost. Propagation is made by seeds.
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