 Claret cup cactus flower north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Claret cup cactus (Echinocereus triglochidiatus) north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Alligator juniper north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 In Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Drying juniper twig north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Ragwort (Senecio) flower north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Four-nerve daisy(?) flower north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Beardtongue (Penstemon secundiflorus) flowers north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Beardtongue (Penstemon secundiflorus) flower north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Red-flowered yucca (Hesperaloe parviflora) north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Foothills paintbrush (Castilleja integra) flower north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Pictographs of Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Yucca on northern rim of Capulin Canyon at evening in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Petroglyphs of Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Rock art of Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Pine trees at the bottom of Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Foothills paintbrush (Castilleja integra) flower in a forest north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Western wallflower (Erysimum capitatum) in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Painted Cave from opposite side of Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Trail through pine forest at the bottom of Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Walking through pine forest at the bottom of Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Figures of people and animals in Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Fendler barberry (Berberis fendleri) flower in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Figure of a hunter(?) on a stone at the foot of Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Yellow salsify (goat s beard, Tragopogon dubius) flower in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Hexagram, snake, Christian church and people on pictographs of Painted Cave in Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Claret cup cactus near Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Alamo Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Upper Alamo Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Walking near Alamo Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Walls of Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Area of pictographs in Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Upper Alamo Canyon, view to the east, in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
 Area of Alcove House in Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Diamondback rattlesnake south from Frijoles Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Burned forest of upper Hondo Canyon west from Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Yapashi ruins in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Group from Dallas Sierra Club walking north-west from Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Caves behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Tyuonyi behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Rocks behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Stone Lions Shrine near Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 View from a trail behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Ladder and caves behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Ladder and ruins behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Sculptures of Stone Lions Shrine near Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Stone circle around Lions Shrine near Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Tail side of stone sculptures of Lions Shrine near Yapashi in Bandelier National Monument. New Mexico, near Los Alamos, May 25, 2008
 Redeye prickly pear cactus (Engelmann prickly pear, Opuntia phaeacantha var. discata) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Cactus coreid bug Chelinidea vittiger on a pad of prickly pear cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 12, 2008
 Cactus coreid bug Chelinidea vittiger nymph on a pad of prickly pear cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 29, 2008
 Nymphs of cactus bug Chelinidea vittiger feeding on prickly pear cactus (discolored areas of opuntia is the result of punctures) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 11, 2008
 Blooming prickly pear cactus (Opuntia engelmanii(?)) in Lick Creek Park. College Station, Texas, May 4, 2020
 Blooming prickly pear cactus (Opuntia) in Leach Teaching Gardens at Texas A and M University. College Station, Texas, April 28, 2024
 Blooming prickly pear cactus (Opuntia) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
 Nymphs of cactus bug Chelinidea vittiger feeding on prickly pear cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2021
 Coreid bugs Chelinidea vittiger (adult with feeding nymph) on a pad of prickly pear cactus (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 7, 2008
 Purple-tinged prickly pear cactus in the middle part of Smokey Creek Trail. Big Bend National Park, Texas, November 25, 2007
 Purple-tinged prickly pear cactus on Smokey Creek Trail near Trap Spring east from Mule Ear Overlook. Big Bend National Park, Texas, November 25, 2007
 Cactus coreid bug (Chelinidea vittiger) on a pad of prickly pear in Antique Rose Emporium. Independence, Texas, August 7, 2010
 Flower of prickly pear cactus (Opuntia engelmanii(?)) in Lick Creek Park. College Station, Texas, May 4, 2020
 Yellow flower of prickly pear cactus (Opuntia) in Lick Creek Park. College Station, Texas, May 7, 2020
 Snail feeding on a green pad of prickly pear cactus (Opuntia) in Antique Rose Emporium in Independence. Texas, May 3, 2009
 Prickly pear cactus (Opuntia) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
 Prickly pear cactus (Opuntia) on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, April 21, 2018
 Prickly pears cactus in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Tender young pads or nopalitos of prickly pear cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, May 13, 2012
 Yellow flower of prickly pear cactus (Opuntia engelmanii(?)) with a bee in Lick Creek Park. College Station, Texas, May 4, 2020
 Prickly pear cactus on Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
 Yellow flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Orange flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Young pads of prickly pear cactus (Opuntia) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Dwarf rosette lichen Physcia neogaea on a dry pad of prickly pear cactus in prairie in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
 Section of prickly pear (cactus fruit) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a supermarket. College Station, Texas, September 3, 2024
 Top view of young pad of prickly pear cactus (Opuntia) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Pad decay fungus Aspergillus alliaceus(?) (black) on prickly pear cactus (Opuntia) on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Dwarf rosette lichen Physcia neogaea on a dry pad of prickly pear cactus (Opuntia) in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
 Close-up of young pad of prickly pear cactus (Opuntia) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Flower buds on a pad of prickly pear cactus (Opuntia) in Bastrop State Park. Bastrop, Texas, April 15, 2023
 Warped pad of prickly pear cactus (Opuntia) with a cladode rot fungus Aspergillus alliaceus(?) (black) on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Details of a slice of prickly pear (cactus fruit) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a supermarket. College Station, Texas, September 3, 2024
 Close-up of a slice of prickly pear (cactus fruit) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a supermarket. College Station, Texas, September 3, 2024
 Prickly pears cactus on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Green flower buds of prickly pear cactus (Opuntia) in Bastrop State Park. Bastrop, Texas, April 15, 2023
 Dry pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Purplish pads of a prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Yellow flowers of Prickly pear cactus (Opuntia) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Vegetative shoot of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Texture of a pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Pads of prickly pear cactus on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
 Texture of a pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Emerging pad of prickly pear cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2018
 Prickly pear cactus on a mural "500 Anos de Resistencia" by Salvadoran artist Isaias Mata (1992) on 24th Street in Mission District of San Francisco. California, March 16, 2024
 Slender orange-bush lichen (Teloschistes exilis) together with Parmotrema and Physcia on an old pad of prickly pear cactus in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
 Yellow and orange flowers of Engelmann prickly pear cactus (Opuntia phaeacantha var. discata) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
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