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  1. Close up of a Christmas cactus, Schlumbergera truncatus, in bloom.; Lexington, Massachusetts.
  2. Flower's Eye
  3. Cactus
  4. Barrel Cactus (Ferocactus wislizenii)
  5. Prickly pear cactus (Opuntia sp.)
  6. Prickly pear cacti (Opuntia sp.)
  7. Cacti
  8. Aylostera 'Apricot Ice'
  9. USA, Arizona, Organ Pipe National Monument, sunset
  10. Cactus seen from the side in front of blue sky with white clouds.
  11. Full moon rising over cacti.
  12. Ladder backed woodpecker resting on Gander's Cholla, California.
  13. Peruvian Torch cactus
  14. Pink blossom on cactus plant.
  15. Curtis Flowering Cactus III
  16. Bluebonnet, Paintbrush and Pricky Pear cactus, Texas
  17. Boojum Tree and Cardon cacti at dusk, El Vizcaino Biosphere Reserve, Mexico
  18. Cardon (Pachycereus pringlei) cacti by night, El Vizcaino Biosphere Reserve, Mexico.
  19. Cardon (Pachycereus pringlei) cacti in desert landscape, Santa Catalina Island, Mexico
  20. Cardon (Pachycereus pringlei) cacti, Santa Catalina Island, Sea of Cortez, Mexico
  21. Cardon (Pachycereus pringlei) cacti, Santa Catalina Island, Sea of Cortez, Mexico
  22. Cardon (Pachycereus pringlei) cactii in desert landscape, Baja California, Mexico
  23. Cardon (Pachycereus pringlei) cactus in dry arroyo, Sea of Cortez, Mexico
  24. Cardon (Pachycereus pringlei) cactus, Baja California, Mexico
  25. Cardon (Pachycereus pringlei) cactus, Santa Catalina Island, Sea of Cortez, Mexico
  26. Claret Cup Cactus (Echinocereus triglochidiatus) flowers in bloom
  27. Common Raven perching in Cardon cactus, Sonoran Desert, Mexico
  28. Fishhook Cactus (Mammillaria sp) blooming, Sea of Cortez, Baja California, Mexico
  29. Old Man Cactus (Lophocereus schottii) in Sonoran desert, Mexico
  30. Opuntia (Opuntia sp) cactus flowering, Little St. Simon's Island, Georgia
  31. Opuntia (Opuntia sp) in bloom, North America
  32. Opuntia (Opuntia sp) in Chihuahuan Desert landscape, Big Bend National Park, Texas
  33. Plains Pricklypear (Opuntia polyacantha), Arches National Park, Utah
  34. Saguaro (Carnegiea gigantea) and Safford Peak, Saguaro National Park, Arizona
  35. Saguaro (Carnegiea gigantea) cactus at beach, Cabo San Lucas, Mexico
  36. Saguaro (Carnegiea gigantea) cactus close up of trunk and spines, North America
  37. Saguaro (Carnegiea gigantea) cactus in desert, Sonoran Desert, Arizona
  38. Saguaro and Teddybear Cholla amid Lupine and California Brittlebush, Arizona
  39. Saguaro and Teddybear Cholla from Picacho Peak State Park, Arizona
  40. Saguaro cactus, Ocotillo, Prickly Pear, and Cholla cactus, Sonoran Desert, Arizona
  41. Saguaro with Fishhook Barrel Cactus, Sonoran Desert, Arizona
  42. Teddy Bear Cholla under stormy skies, Joshua Tree National Park, California
  43. Classic Saguaro Sunset II
  44. Desert landscape
  45. Desert Sun
  46. Jardin Etnobotanico del Centro Cultural Santo Domingo
  47. Tuscany coast
  48. Flower