 Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Blooming Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Flower head of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Mexican hat flowers (Ratibida columnaris) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Cylindrical flowerhead of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Basal leaves of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Mexican hat (Ratibida columnaris) cylindrical flowerhead with dark red-purple disk flowers and yellow and brown ray flowers on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 2, 2018
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Orange Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Yellow Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Mexican hat flower (Ratibida columnifera) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Cylindrical part of a flower of Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Blooming Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Long, cone-shaped receptacle of Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 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
 Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Two Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Field of Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Mexican hat flowers (Ratibida columnifera) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Dark colored Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Leaves of Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Stick caterpillar on black-eye susan flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Mexican hat flower with a bee on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Young grasshopper on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
 Salt Marsh Moth caterpillar (Estigmene acrea) on Senecio(?) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Golden headed weevil (Compsus auricephalus) snout beetle on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 10, 2008
 Leaf of maypop (Passiflora foetida) with a Gulf fritillary caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Salt moth caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Brown caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Close up of salt moth caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Monarch caterpillar on milkweed in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Bull nettle flowers with a caterpillar(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Group of Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Two Mexican hat flowers grown together in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 10, 2008
 Buckeye caterpillar on purple gerardia(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Small green caterpillar hanging on a net strand in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Flower of a thustle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2020
 Mexican hat flowers at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Firewheel flower (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Firewheel flower (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Firewheel flower (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Flower of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Details of a flower of firewheel (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Field of black eyed susan and Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Flower spike of largebracted plantain (Plantago aristata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Flower of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Striped caterpillar of white-lined sphinx moth (Hyles lineata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Green caterpillar on flowers of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Mexican Hat wildflower near a loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Flower buds of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Back lit flower of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Alyssum like flower with bull nettle on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Batterfly on a thistle flower (Cirsium) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Flower buds of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Some white five-petals flower on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Salt Marsh Moth caterpillar (Estigmene acrea) feeding on Engelmann s daisy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Mexican Hat wildflowers on roadside of loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 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
 Flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Flower spike of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 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
 Frightened caterpillar of white-lined sphinx moth (Hyles lineata) spitting green fluid in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 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
 Flower heads of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 White flower of showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Large flower of showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Cockleshell mushrooms Lentinellus castoreus on an oak log in red cedar forest Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
 Disturbed caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose showing orange horns (osmeterium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Flower of showy evening primrose (Oenothera speciosa) with holes from insects on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Caterpillar of black swallowtail butterfly (Papilio polyxenes) in defensive pose retracting orange horns (osmeterium) and showing three pairs of front legs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Flower of shaggy portulaca (rose purslane, Portulaca pilosa) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 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
 Thistle flower (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Herbertia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Verbena (vervain) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Thistle flower (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Winecup flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
 White magnolia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Flower of dewberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Bluebonnet flower in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
 Prairie parsley flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
 Dry flower spike of plantain in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
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