 Tulipan del monte (Hibiscus cardiophyllus) in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 Claret cup cactus (Echinocereus triglochidiatus) in Ladybird Johnson Wildflower Center. Austin, Texas, March 7, 2009
 Close-up of a flower of Claret cup cactus 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
 Devil s shoestring (Nolina lindhemeriana) 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
 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
 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
 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
 Reakirt s Blue (Echinargus isola) butterfly on Antelope horns milkweed (Asclepias asperula) on Savanna Meadow Trail in Ladybird Johnson Wildflower Center. Austin, Texas, May 10, 2009
 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
 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
 Palafoxia hookeriana flower in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Crag lily (Anthericum torreyi) 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
 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
 Seeds of Johnson grass (Sorghum halepense) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Close up of seeds of Johnson grass (Sorghum halepense) taken from Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Texas aster (Aster texanus) near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Fluffy seeds of aster in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Fluffy seeds of a plant of aster family on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Seeds of soft golden aster (Bradburia pilosa) in Lick Creek Park. College Station, Texas, October 10, 2022
 Fluffy seeds of a plant of aster family in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
 Texas aster with variegated fritillary(?) butterfly near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Seeds of soft golden aster (Bradburia pilosa, Heterotheca, Chrysopis) in Lick Creek Park. College Station, Texas, June 30, 2012
 Dwarf yellow butterfly (Dainty Sulphur, Nathalis iole) on Texas aster near a pond of Upper falls in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Fluffy seeds of a plant of aster family on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
 Fluffy seeds of a plant of aster family in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Dry seeds of white heath aster (Symphyotrichum ericoides) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Seeds of Johnson grass (Sorghum halepense) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Some slender plant of aster(?) family taken from a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Branch of some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Flowers of some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Fleabane daisy like plant of aster family on Green Circles (center-pivot irrigation) in Irkhaya Farms. South-western Qatar, March 29, 2014
 Johnson grass (Sorghum halepense)(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 26, 2016
 Flowers of roadside aster (Aster exilis) from a lawn of apartments at George Bush Drive. College Station, Texas, October 21, 2024
 Panicled aster (Symphyotrichum lanceolatum, Aster lanceolatus) in fields near Deviatkino in northern Saint Petersburg. Russia, July 25, 2016
 Some slender plant of aster(?) family on dark background on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Spikelets of Johnson grass (Sorghum halepense)(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 26, 2016
 Spike of Johnson grass (Sorghum halepense)(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 26, 2016
 Close up of Johnson grass (Sorghum halepense)(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 26, 2016
 Ponds of Pedernales Falls. Johnson City, Texas, November 7, 2009
 Pink rose in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
 Cactus in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Wide angle view of some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Loop 360 Pennybacker Bridge and Lake Austin at morning. Austin, Texas, July 26, 2008
 Johnson grass (Sorghum halepense) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Water stream near Pedernales Falls. Johnson City, Texas, November 7, 2009
 Cypress roots below Pedernales Falls. Johnson City, Texas, November 7, 2009
 Cypress pool below Pedernales Falls. Johnson City, Texas, November 7, 2009
 Cypress pool below Pedernales Falls. Johnson City, Texas, November 7, 2009
 Orange tiger lily in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
 Replica of an old barn in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
 Artificial waterfall in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Pink water lily in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
 Cypress roots between stones below Pedernales Falls. Johnson City, Texas, November 7, 2009
 Tombs of Thomas and Martha Johnson in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Twin artificial waterfall in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Buffalo bur (Solanum rostratum) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Crossvine (Bignonia capreolata) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Angel s trumpet (Brugmansia) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
 Waterfall in Japanese garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Blue aster in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
 Aster with a bumblebee in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 Fern fiddlehead in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Blooming cherry like tree in McKinney Falls State Park. Austin, Texas, March 7, 2009
 White flower of lily family in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Blue aster (Symphyotrichum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 River below Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 7, 2009
 Cypress below Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 7, 2009
 Blooming mountain laurel (Sophora secundiflora) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Blue curls (Fiddleneck, Phacelia congesta) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Water speedwell (Veronica anagalis-aquatica) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Cypress needles below Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 7, 2009
 Cypresses and rocks below Beach Area in Pedernales Falls State Park. Johnson City, Texas, November 7, 2009
 Mature seed head of curly dock (Rumex) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Shoot of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Flowers of Blue curls (Fiddleneck, Phacelia congesta) in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Emerging leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
 Green false nightshade (Chamaesaracha coronopus) near a parking lot in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Ladybug on a flower umbel of Japanese Aralia (Fatsia japonica) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
 Young leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
 Rice stink bug nymph (Oebalus pugnax) on bluestem grass in McKinney Falls State Park near Austin. Texas, May 10, 2009
 Young tightly spaced leaves of Sago palm (cikas) in prehistoric garden in Zilker Botanical Gardens. Austin, Texas, May 10, 2009
 Galls of wasp Belonocnema kinseyi on underside of a fallen live oak leaf in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
 Seeds of Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Flowers and seeds of Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Split pod of Senna italica (Cassia) with seeds taken from Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, June 5, 2015
 Twin falls in Pedernales Falls State Park, from an overlook. Johnson City, Texas, November 7, 2009
 Bat-face cuphea (Bunny Ears, Cuphea llavea) in Zilker Botanical Gardens. Austin, Texas, November 7, 2009
 False Day Flower (Commelinantia anomala, Tinantia anomala) in Zilker Botanical Gardens, Austin, Texas, March 7, 2009
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