 Flower buds of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Close up of green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Close up of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Blooming Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Emerging flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming plant Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Snow-on-the-prairie (Euphorbia bicolor) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Snow-on-the-prairie (Euphorbia bicolor) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 White and green leaves of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Shoots of Snow-on-the-prairie (Euphorbia bicolor) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Snow-on-the-prairie (Euphorbia bicolor) with flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Snow-on-the-prairie (Euphorbia bicolor) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Snow-on-the-prairie (Euphorbia bicolor) with linear floral leaves having white margins and small fan-like male flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Shoot of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Plants of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Grasshopper on snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Shoot of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
 Flowers of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Field of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Emerging Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Blooming plants of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Back lit shoot of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Emerging Snow-on-the-prairie (Euphorbia bicolor) plant in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 9, 2012
 Green lynx spider on Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Snow-on-the-prairie with a green lynx spider in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Prairie parsley flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
 Flower of puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Seeds of prairie-mimosa (Desmanthus illinoensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Dry prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Flower of Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Dried prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Dry prairie grasses 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
 Field of prairie parsley (Polytaenia texana), home of many black swallowtail caterpillars, in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Green and white spurge (Euphorbia heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Prairie tea (Croton monanthogynus) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Green and white spurge (Euphorbia heterophylla) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Polypore mushrooms Gloeophyllum striatum at the end of a dry fallen branch of a large Huisache tree (Acacia farnesiana), covered by black spots that look like some Hypoxylon, near a border of prairie, semi-open area of overgrown prairie, where the prairie starts sloping towards Brazos River in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Prairie or Fineleaf Bluets (Diamondflowers, Stenaria nigricans, Hedyotis nigricans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
 Flower head of field thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Flower head of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Flower buds of bluebonnet (lupin) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Young grasshopper on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
 Flower spike of largebracted plantain (Plantago aristata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Butterfly in dew (ventral view) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Brown tree bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Flower of purple gerardia (false foxglove, Agalinis purpurea) with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Creeping Euphorbia in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Fragrant flatsedge (Cyperus odoratus)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Morning Glory (Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 7, 2010
 Overgrown edge of prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2020
 Dry prairie at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Opening flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Damselfly on a flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Prairie parsley (Polytaenia texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Prairie parsley (Polytaenia texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Prairie brazosmint (Warnockia scutellarioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Prairie verbena (Glandularia bipinnatifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Mexican hat flower with a bee on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Yellow Water-weed (Ludwigia peploides) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Green Metallic Bee (Agapostemon) on pink powderpuff mimosa in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 7, 2010
 Back lit yellow Water-weed (Ludwigia peploides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Umbrella of Prairie parsley flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Pink powderpuff flower (Mimosa strigillosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Tiny yellow flower like evening primrose in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2009
 White prickly poppy flower on field near Old Washington Town Site Loop Trail of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Small Gymnopus(?) mushrooms in grass on prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 8, 2013
 Blue flowes of spiderwort (Tradescantia) in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Green and white spurge (Euphorbia heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Slender orange bush lichen (Teloschistes exilis) on a twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Flower buds of Bull nettle (mala mujer, Cnidoscolus texanus) armed with stinging hairs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Potato earthball mushrooms (Scleroderma bovista) in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Foxtail millet grass (Setaria italica) in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Agaricus mushrooms under several wild live oaks in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Close-up of blue flowes of spiderwort (Tradescantia) in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Prostrate spurge (Euphorbia) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Bee on pink powderpuff flower (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Pepper-like lichen Sarcogyne regularis(?) on a sandstone rock in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Prairie verbena (Glandularia bipinnatifida) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Yellow garden spider (Argiope aurantia) on a web with dense zigzags of silk (stabilimentum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Yellow color variant of Mexican hat flower (Ratibida columnifera) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Common fieldcap mushrooms (Agrocybe pediades) in prairie on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Prairie sunflower (Helianthus petiolaris)(?) on a sand pile at the beginning of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 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
 Flower of Small White Morning Glory (Whitestar, Pitted Morningglory, Ipomoea lacunosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 25, 2012
 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
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