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| 28-APR-2007 | Cliff Hutson |
Prickly pear cacti, classified in the subgenus Opuntia, typically grow with flat, rounded segments that are armed with two kinds of spines; large, smooth, fixed spines and small, hairlike spines called glochids that easily penetrate skin and detach from the plant.
Opuntia is a genus in the cactus family Cactaceae.
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