Old Man Cactus

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Across
  1. 4. - Sharp pointed structures on a plant
  2. 7. - Dry and lacking rainfall
  3. 9. - Paying attention to something in the present moment
  4. 11. - Southwestern state in the U.S. known for its deserts
  5. 12. - Skin damage caused by overexposure to the sun
  6. 13. - Serious thought or consideration
  7. 17. - Barren region with little rainfall
  8. 19. - Spiny plant of arid regions
  9. 20. - Covered with sharp spines or thorns
  10. 21. - The ability to remember things
Down
  1. 1. - Pointed, protective outgrowths on a plant
  2. 2. - A sentimental longing for the past
  3. 3. - The act of remembering something from the past
  4. 5. - Water-storing plant with fleshy leaves
  5. 6. - Tiny grains of rock found in deserts and on beaches
  6. 8. - Long period of time with little or no rainfall
  7. 10. - Covered in or consisting of sand
  8. 14. - An idea or opinion formed through mental effort
  9. 15. - Remember something from the past
  10. 16. - High temperature
  11. 18. - Country south of the United States