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
Yellow flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 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
Fruits of prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 29, 2009
Purple spineless prickly pears cactus in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
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
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
Blooming prickly pear cactus north from Capulin Canyon in Bandelier National Monument. New Mexico, near Los Alamos, May 24, 2008
Prickly pears cactus on East Trail in Lost Maples State Natural Area. Vanderpool, Texas, November 8, 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
Orange flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 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
Rapidly growing vegetative shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
Sprout of prickly pears cactus (opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 6, 2008
Magenta tinged prickly pears cactus on northern hill in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
Blooming Prickly pears (Opuntia) cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2009
Prickly pears (sabra) cactus on the roadside in Nizzanim. The Middle East, July 19, 2001
El Capitan Mountain with prickly pears cactus in foreground, view from upper Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
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
Prickly pears and yucca near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
Snail feeding on a fresh young pad of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
Prickly pears cactus (known as sabra in Israel) in downtown Beer-Sheva, at intersection of Rager and Tuvyahu Street. The Middle East, February 18, 2000
Prickly pears cactus near Fishing Beach. Sandy Hook, New Jersey, March 11, 2007
Prickly pears cactus on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
Vegetative shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
New growth of prickly pears cactus (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 1, 2009
Prickly pears cactus in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
Prickly pears near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
Flower bud of prickly pears cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, April 19, 2009
Spotted cucumber beetle (Diabrotica undecimpunctata) on a shoot of prickly pears cactus in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 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
Rapidly growing vegetative shoot of prickly pears cactus (Opuntia) with fleshy, green, leaf-like phylloclades in Antique Rose Emporium. Independence, Texas, April 19, 2009
Prickly pear cactus on Turkey Pass Trail in Enchanted Rock State Natural Area. Fredericksburg, Texas, October 27, 2007
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
Shoot of prickly pears cactus (Opuntia) in Antique Rose Emporium in Independence. Texas, March 22, 2009
Prickly pears cactus (zoomed) near Fishing Beach. Sandy Hook, New Jersey, March 11, 2007
Snail feeding on a green pad of prickly pear cactus (Opuntia) in Antique Rose Emporium in Independence. Texas, May 3, 2009
Cactus coreid bug (Chelinidea vittiger) on a pad of prickly pear in Antique Rose Emporium. Independence, Texas, August 7, 2010
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
Tender young pad or nopalitos of prickly pear cactus 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
Rapidly growing vegetative shoot of prickly pear cactus 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, April 1, 2009
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
Dried sap of prickly pears cactus (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 8, 2009
Blooming prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 30, 2011
Prickly pears in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
Prickly pear pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
Prickly pear (Opuntia) pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
Pad of prickly pears in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
Yellow flowers of Prickly pear cactus (Opuntia) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
Yellow flowers of prickly pears (Opuntia) in Birch Creek Unit of Lake Somerville State Park, April 29, 2012
Tender young pads or nopalitos of prickly pear cactus (Opuntia) in Antique Rose Emporium. Independence, Texas, May 13, 2012
Fruits of prickly pears (Opuntia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 10, 2012
