Task: Explanation
Input (English): Cylindropuntia is a genus of cacti (family Cactaceae), containing the cholla, native to northern Mexico and the Southwestern United States. They are known for their barbed spines that tenaciously attach to skin, fur, and clothing. Question: Are both Cylindropuntia and Aspen common names for certain tree species? Answer: no
Output (English): Cylindropuntia is a genus of cacti family Cactaceae, containing the cholla, native to northern Mexico and the Southwestern United States.