 Milkweed (Antelope horns, Asclepias asperula) 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
 Yellow flowers of Prickly pear cactus (Opuntia) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 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
 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
 Dry aster seeds in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Tulipan del monte (Hibiscus cardiophyllus) in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Devil s shoestring (Nolina lindhemeriana) in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Button cactus (Epithelantha micromeris) with red fruits in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Close-up of a flower of Claret cup cactus in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Claret cup cactus (Echinocereus triglochidiatus) in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Candelilla plant (Desert Candle, Euphorbia antisyphillitica) in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Common trumpet creeper (Foxglove vine, Campsis radicans) in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Spotted cucumber beetle (Diabrotica undecimpunctata) on a shoot of prickly pears cactus in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Succulent in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Palafoxia callosa in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Red succulent flowers in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Water cistern in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Netted milkvine (Matelea reticulata) flower, with flat starlike green petal lobes with netlike markings and the shiny pearly white central dome, on Woodland Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Palafoxia hookeriana flower in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Water-primrose (Ludwigia) in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Mistflower (Eupatorium coelestinum) in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Crag lily (Anthericum torreyi) in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Green milkweed (Antelope horns, asclepias viridis) in morning dew in Lake Bryan Park, on a trail on an island. Bryan, Texas, April 14, 2009
 Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, April 4, 2009
 Green milkweed (Antelope horns, asclepias viridis) on Post Oak Trail in Lick Creek Park. College Station, Texas, April 18, 2018
 White-fringed weevil (Naupactus) beetle on green milkweed (Antelope horns, asclepias viridis) in Lake Bryan Park. Bryan, Texas, October 2, 2009
 Green milkweed (Antelope horns, asclepias viridis) on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, April 21, 2019
 Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
 Seeds of Antelope horns milkweed (Asclepias viridis) in Lick Creek Park. College Station, Texas, May 17, 2018
 Green milkweed (Antelope horns, asclepias viridis) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
 Opening flower of Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
 Green milkweed (Antelope horns, asclepias viridis) in Lick Creek Park. College Station, Texas, April 5, 2018
 Green milkweed (Antelope horns, Asclepias viridis) in Lick Creek Park. College Station, Texas, April 5, 2018
 Flower of green milkweed (Antelope horns, asclepias viridis) in Lick Creek Park. College Station, Texas, May 5, 2008
 Fluffy seeds of Antelope horns milkweed (Asclepias viridis) in Lick Creek Park. College Station, Texas, May 17, 2018
 Seed head of Antelope horns milkweed (Asclepias viridis) in Lick Creek Park. College Station, Texas, May 17, 2018
 Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
 Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Fruits of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Inflorescence of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Green milkweed (Antelope horns, asclepias viridis) with aphids in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Flower buds of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Closed flowers of Antelope horns milkweed with a hairy seed in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
 Antelope horns (asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 10, 2008
 Blue Wave Butterfly (Myscelia cyaniris) with bands of iridescent blue across the upper wing surface in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Butterfly on a flower of tropical milkweed in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Flowers of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Seed pods of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Blooming green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Flowers of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Green milkweed (Asclepias viridis) in bloom on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Flower heads of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Monarch caterpillars feeding on green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Monarch butterfly on red milkweed (Asclepias) in Antique Rose Emporium. Independence, Texas, July 27, 2019
 Blooming White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Flowers of White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Large milkweed bug (Oncopeltus fasciatus) on blue butterfly bush (blue glory bower, Rotheca myricoides) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 20, 2008
 White-flowered milkweed (Asclepias variegata) damaged by ants in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Opening flowers of White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Blue flower of Lignum Vitae (Gaiac tree, Guaiacum sanctum) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Orange milkweed (Asclepias tuberosa) in Antique Rose Emporium. Independence, Texas, August 15, 2009
 Red milkweed (Asclepias tuberosa) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
 Amanda s Blue (Polyommatus amandus) butterfly on a meadow east from Kuzmolovo, 7 miles north from Saint Petersburg. Russia, June 22, 2011
 Red milkweed flowers (Asclepias tuberosa) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
 Large Milkweed Bug (Oncopeltus fasciatus) on Green milkweed (Asclepias viridis) in Lick Creek Park. College Station, Texas, April 11, 2018
 Speckled butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Sitting butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Butterfly head in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Flying Dutchman butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of a black and red butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black and red striped butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black and orange butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black and red butterfly on a leaf in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Red Peacock Butterfly (Anartia amathea) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of Dryadula Phaetusa(?) butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of a feeding Owl Butterfly (Caligo) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Orange butterfly Dryadula Phaetusa(?) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black butterfly with white stripes in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of Red Peacock Butterfly (Anartia amathea) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Butterfly on pink Pentas lanceolata flowers in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Rice Paper Butterfly (Idea leuconoe) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Red milkweed (Asclepias curassavica) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 6, 2009
 Red milkweed (Asclepias curassavica) in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 20, 2009
 Owl Butterfly (Caligo) feeding on a rotten star fruit in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Butterfly on Pentas lanceolata (Penta starla) flowers in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Milkweed bug on asclepias curassavica in TAMU Holistic Garden in Texas A and M University. College Station, Texas, November 15, 2009
 Asclepias curassavica (milkweed) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 25, 2009
 Asclepias curassavica (red milkweed) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, August 22, 2009
 Red milkweed (Asclepias curassavica) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, March 15, 2009
 Yellow milkweed (asclepias) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2009
 Owl Butterfly (Caligo) with dramatic eyespots on the underside of the lower wing in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Shore milkweed (Asclepias perennis) in a dry cypress pond in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Red milkweed (Asclepias curassavica) with aphids in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 20, 2009
 Statue of Bevo with sawed-off horns (t.u. mascot, Texas longhorn cow, a mascot of University of Texas at Austin) at Aggieland Outfitters on George Bush Drive near Texas A and M University. College Station, Texas, March 29, 2009
 Green milkweed (Asclepias viridis) in dew in Lake Bryan Park. Bryan, Texas, May 20, 2009
 Whorled milkweed (Asclepias verticillata) in Lake Bryan Park. Bryan, Texas, October 2, 2009
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