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Description: Multi-stemmed columnar cactus
Ribs:
obtuse, rounded;
Areoles : About 1
cm. apart, large, covered with short yellow wool,
turning white or grey as they age;
Spines: Radial
spines 8 to 10, 6 mm to 1 cm. long, spreading, stiff, sharp,
amber-yellow to brown ;central 1 to 3
yellowish centrals, 12 mm long,
stronger and longer than the radials; all the spines later becoming
grey.
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