 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Early fall color of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Blackberry in poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 23, 2012
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Green berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Back lit leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fresh leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fall colors of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Back lit shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Reddish shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Tender leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Young leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Dry prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Dry plant of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Shoot of poison ivy on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Tender young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Dry seeds of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Green berries of poison ivy on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Tender pink leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Dry prairie grasses in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Dried prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Dry croton and prairie grasses in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Shoots of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 27, 2019
 Young leaves of poison ivy on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Shoot of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Antlion larvae sand pit traps in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Antlion (doodlebug) funnel pits in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Caked earth of dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Reddish young leaves of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Back lit leaf of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Cracks of caked earth mud of dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Weeds grown on bottom of dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Brazos River from Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Brazos River from Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Wet log in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Wet stump in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Dry leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Dry vegetation in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Dry cedar and oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Crescent(?) butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 7, 2011
 Skipper butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 7, 2011
 Dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 30, 2011
 Dry prairie at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Prickly pear pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Brown leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Orange dry leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Decaying dry leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Wrinkled dry leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 Composition from trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dry leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 Tree foliage in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Browned trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Fog on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Rotting tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Prickly pears in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Stump with dry leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Wilted leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Dry forest on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Foliage on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Dry trees on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Decaying brown dry leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Snake(?) in drying pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Accumulation of water in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 19, 2011
 Wilted brown leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Bluebonnet seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Alligator gar in drying pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Dried bottom of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 9, 2011
 Detail of a dead tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Sunrise on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Prickly pear (Opuntia) pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Picnic place near a pond in fog, in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Tree base near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Fibrous tree trunk in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Smartweed overgrowing dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Fibrous tree trunk of cedar in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Dead cedar on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dead fish in drying pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Tuft of fluff of milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 Bark of dry hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Foggy sunrise on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dry tree foliage on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Texture of soil after a period of rains in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 19, 2011
 Bark texture of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Alligator texture of rotting tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
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