Ten Opuntia species compared through exact photographs of pads, spines and flowers. An editorial selection, not a scientific ranking. Original video contributions CC BY-SA 4.0. Photographs retain their individual licences and attribution listed below. Photograph credits: 1. File:20220605 Hortus Botanicus - Opuntia ficus-indica (plant).jpg; Rudolphous; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:20220605_Hortus_Botanicus_-_Opuntia_ficus-indica_(plant).jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 2. File:Opuntia microdasys 3.jpg; Stan Shebs; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Opuntia_microdasys_3.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 3. File:Wild Opuntia basilaris.jpg; Jessie Eastland; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Wild_Opuntia_basilaris.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 4. File:Opuntia robusta (Cactaceae).jpg; Juan Carlos Fonseca Mata; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Opuntia_robusta_(Cactaceae).jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 5. File:Opuntia engelmannii-Figuier de barbarie-20150609.jpg; Daniel VILLAFRUELA .; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Opuntia_engelmannii-Figuier_de_barbarie-20150609.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 6. File:Prickly pear MN 2007.JPG; SEWilco; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Prickly_pear_MN_2007.JPG; Whole photograph scaled and fitted, without crop; title and caption bars added. 7. File:Opuntia polyacantha.jpg; Matt Lavin from Bozeman, Montana, USA; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0; https://commons.wikimedia.org/wiki/File:Opuntia_polyacantha.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 8. File:Opuntia fragilis 1.jpg; Stan Shebs; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Opuntia_fragilis_1.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 9. File:Erect Prickly Pear (Opuntia stricta) (3104093404).jpg; Cliff from Arlington, Virginia, USA; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File:Erect_Prickly_Pear_(Opuntia_stricta)_(3104093404).jpg; Whole photograph scaled and fitted, without crop; title and caption bars added. 10. File:Opuntia rufida 3.jpg; Stan Shebs; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Opuntia_rufida_3.jpg; Whole photograph scaled and fitted, without crop; title and caption bars added.