 Common sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Fruits of common sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Common sandbur (Cenchrus spinifex) near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Coastal sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Coastal sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Sandburs spikelet (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Common sandbur grass (Cenchrus spinifex) in Old Baylor Park. Independence, Texas, September 3, 2020
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Common Gymnopus mushrooms on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Cluster of common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of common brown grass Gymnopus mushrooms, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Brown caps of common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of common brown grass Gymnopus mushrooms under a microscope, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of common brown grass Gymnopus mushrooms (stacked image), collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Close-up of a dark violet cap of young common Gymnopus mushroom on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Pineywoods cow on Barrington Farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 13, 2009
 Powderpuff (Mimosa strigillosa) with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets and paintbrush flowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Pineywoods cow looking through a fence on Barrington Farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 13, 2009
 Snow-on-the-prairie (Euphorbia bicolor) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Violet ruella (Ruellia nudiflora) with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Pineywoods cow snout on Barrington Farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 13, 2009
 Field of bluebonnets and paintbrush flowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Gulf fritillary (Agraulis vanillae) butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Copper lily (Habranthus texanus) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Photographer with a tripod taking pictures of a field of bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2009
 Spores of young common Gymnopus mushrooms with dark violet caps on a side of a sandy path, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Some common grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Wing texture of Gulf fritillary (Agraulis vanillae) butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Common prairie grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 8, 2012
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common red corn poppy (Papaver rhoeas) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common witchgrass (Panicum capillare)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common dandelion and bluets on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Flower of a common prairie grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Flower of common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Common Buckeye butterfly (Junonia coenia) on beebalm in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Common button lichen (Buellia stillingiana) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Seed head of common dandelion (Taraxanum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Seed head of common dandelion (Taraxacum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Common button lichen (Buellia stillingiana) on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Fluffy seed head common dandelion (Taraxacum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Common Button Lichen (Buellia stillingiana) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Common red corn poppy (Papaver rhoeas) in bloom on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Flower of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Upper view of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common fieldcap mushrooms (Agrocybe pediades) in prairie on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Close-up of a flower of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common button lichen (Buellia stillingiana) (black) together with Lecanora on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Gills of common fieldcap mushrooms (Agrocybe pediades) in prairie on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Common red corn poppy (Papaver rhoeas) with black spots on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Magnolia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Flower of thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 24, 2009
 Dam of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 24, 2009
 Butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 19, 2009
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 A pond from a dam in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Ripening dewberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Mistletoe in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 12, 2009
 Underside of common fieldcap mushrooms (Agrocybe pediades) in prairie on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Small pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Horse nettle(?) (Solanum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Berries of mistletoe in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 12, 2009
 Turtle on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Robber Fly (Laphria) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Close up of a butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 19, 2009
 Pond at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 False dandelion with a bee in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2009
 Slender vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Carriage in mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Trail through a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 White flowers on a bush in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Dry flower spike of plantain in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Forest near a pond dam in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 A pond at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 White magnolia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Forest in mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 A pond from a dam at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Forest near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
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