 Prickly peas (Opuntia) cactus at the entrance in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 3, 2021
 Pads of prickly peas cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Prickly peas cactus (Opuntia) with yellow Senecio(?) flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Blooming 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
 Flower of prickly pear cactus (Opuntia engelmanii(?)) in Lick Creek Park. College Station, Texas, May 4, 2020
 Yellow flower of prickly pear cactus (Opuntia engelmanii(?)) with a bee in Lick Creek Park. College Station, Texas, May 4, 2020
 Prickly peas (Opuntia cactus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Dry skeleton of prickly peas cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Rusty pads of prickly peas cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Pad decay fungus Aspergillus alliaceus(?) (black) on prickly pear cactus (Opuntia) on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Emerging pad of prickly pear cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2018
 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
 Close up of a tender young pad of prickly pear cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2018
 Tender young pad or nopalitos of prickly pear cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2018
 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
 Prickly pear cactus (Opuntia) on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, April 21, 2018
 Sprout of prickly pears cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 6, 2008
 Dried sap of prickly pears cactus (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 8, 2009
 New growth of prickly pears cactus (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 1, 2009
 Emerging sprout (new pad) of prickly pears cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 6, 2008
 Blooming Prickly pears (Opuntia) cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2009
 Tender young pad or nopalitos of prickly pear cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, March 31, 2009
 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
 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
 Prickly pear cactus (Opuntia) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
 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
 Rapidly growing vegetative shoot of prickly pear cactus (opuntia) with glossy wax coating and fresh areolas bearing leaf primordia, spines and tufts of glochids in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 1, 2009
 Shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium in Independence. Texas, March 22, 2009
 Flower bud of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
 Tender young pad or nopalitos of prickly pear cactus (opuntia) with glossy wax coating and fresh areolas bearing leaf primordia, spines and tufts of glochids (barbed hairs) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, March 31, 2009
 Snail feeding on a green pad of prickly pear cactus (Opuntia) in Antique Rose Emporium in Independence. Texas, May 3, 2009
 Vegetative shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
 Tender young pads or nopalitos of prickly pear cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, May 13, 2012
 Rapidly growing vegetative shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
 Snail feeding on a fresh young pad of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
 Nymphs of cactus bug Chelinidea vittiger feeding on Opuntia cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2021
 Orange flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Yellow flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Blooming prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 30, 2011
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Dry pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Dry pad skeleton of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Pad of pricly pears (opuntia) cactus with snow in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 10, 2008
 Yellow flowers of Prickly pear cactus (Opuntia) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Texture of a pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Vegetative shoot of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Rapidly growing vegetative shoot of prickly pears cactus (Opuntia) with fleshy, green, leaf-like phylloclades in Antique Rose Emporium. Independence, Texas, April 19, 2009
 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
 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
 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
 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
 Prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2022
 Prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2020
 Flower of Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
 Fruits of Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
 Flowers of Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
 Blooming Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
 Fruits of prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 29, 2009
 Fruits of prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 10, 2012
 Flower and fruits of Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
 Fresh pads of prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2020
 El Capitan Mountain with prickly pears cactus in foreground, view from upper Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
 Prickly pears (Opuntia) near Howdy Haus at Floriculture Road in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2022
 New growth shoot (apical meristem) of Opuntia cactus (pricly pears) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 17, 2009
 Yellow flowers of prickly pears (Opuntia) in Birch Creek Unit of Lake Somerville State Park, Texas, April 29, 2012
 Prickly pear (Opuntia) pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Purple spineless prickly pears cactus in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Magenta tinged prickly pears cactus on northern hill in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Shoot of greenbrier (prickly-ivy, smilax) in Lick Creek Park. College Station, Texas, May 10, 2012
 Prickly pears cactus in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Young leaves of greenbrier (prickly-ivy, smilax) in Lick Creek Park. College Station, Texas, May 10, 2012
 Prickly shoot of dewberry (Rubus) in Lick Creek Park. College Station, Texas, March 29, 2009
 Back lit shoot of greenbrier (prickly-ivy, smilax) in Lick Creek Park. College Station, Texas, May 10, 2012
 Prickly seeds of Hedge Parsley (Torilis arvensis) in Lick Creek Park. College Station, Texas, May 19, 2014
 Prickly flowers of Hooker s eryngo (Eryngium hookeri) in Lick Creek Park. College Station, Texas, July 3, 2014
 Prairie in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Trees in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Purple-tinged prickly pear cactus in the middle part of Smokey Creek Trail. Big Bend National Park, Texas, November 25, 2007
 Dark berries of greenbrier vine (prickly-ivy, smilax, sarsaparilla) taken from Lick Creek Park. College Station, Texas, November 1, 2012
 Close up of berries of greenbrier vine (prickly-ivy, smilax, sarsaparilla) in Lick Creek Park. College Station, Texas, November 6, 2012
 A creek in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Prairie and oaks in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Amanita mushrooms in Lick Creek Park. College Station, Texas, December 2, 2018
 Oaks and a road in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Small oaks in fog in Lick Creek Park. College Station, Texas, December 18, 2018
 Rocket box bat houses in Lick Creek Park. College Station, Texas, December 18, 2018
 Red cedar and oaks in Lick Creek Park. College Station, Texas, December 18, 2018
 Clusters of dark berries of greenbrier vine (prickly-ivy, smilax, sarsaparilla) taken from Lick Creek Park. College Station, Texas, November 1, 2012
 Spherical cluster of berries of greenbrier vine (prickly-ivy, smilax, sarsaparilla) in Lick Creek Park. College Station, Texas, November 6, 2012
 Usnea lichen fallen from an oak in Lick Creek Park. College Station, Texas, December 24, 2018
 Christmas cholla cactus (Tasajillo, Opuntia leptocaulis) on Homestead Trail in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Pads of prickly pear cactus on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
 Close up of Usnea lichen fallen from an oak in Lick Creek Park. College Station, Texas, December 24, 2018
 Pores of Pycnoporus sanguineus mushroom in Lick Creek Park. College Station, Texas, December 11, 2018
 Group of milkcap (Lactarius) mushrooms in Lick Creek Park. College Station, Texas, December 4, 2018
 Milkcap (Lactarius) mushrooms under oaks in Lick Creek Park. College Station, Texas, December 4, 2018
 Tricholoma subresplendens mushrooms under oaks in Lick Creek Park. College Station, Texas, December 20, 2018
 White mushrooms Tricholoma subresplendens in Lick Creek Park. College Station, Texas, December 20, 2018
|