 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
 Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Mexican hat flowers (Ratibida columnifera) near a pond 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
 Dark colored Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Blooming Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 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, 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 3, 2020
 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
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Cylindrical part of a flower of Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 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
 Basal leaves of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Mexican hat flowers (Ratibida columnaris) 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
 Mexican hat flowers (Ratibida columnaris) on Wildflower Loop Trail 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
 Cylindrical flowerhead of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Mexican hat flower (Ratibida columnaris) with a caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Flower head of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 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 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
 Mexican hat flowers 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
 Mexican hat flowers at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Hairy leaves and blue flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Field of black eyed susan and Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Rosette of leaves of lyreleaf sage in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaves of bluebonnet (Lupinus) on sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Young leaves of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal leaves of redseed plantain in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal leaves of bull thistle(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal leaves of lyreleaf sage in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal leaves of fleabane daisy (Erigeron)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Flowers and young leaves of redbud tree (Cercis canadensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Blue flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of woodland lettuce (Lactuca floridana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaves of sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Basal leaves of white avens (Geum canadense) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaves of bull thistle (Cirsium horridulum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Winter rosette of leaves of woolly-white (Hymenopappus artemisiaefolius) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Winter rosette spiderwort (Tradescantia) with emerging flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Winter rosette of basal leaves of Engelmann s daisy (Engelmannia pinnatifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Close-up of winter rosette of leaves of woolly-white (Hymenopappus artemisiaefolius) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of bull thistle (Cirsium horridulum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Fresh elm leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Young leaves of box elder in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Young leaves and flowers of box elder in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Basal leaves of white avens (Geum canadense) among dry oak leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Green leaves of white avens (Geum canadense) among dry oak leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Leaves of prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Fresh leaves of hackberry 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
 Young leaves of elderberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Thorny rosette of leaves of a thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Giant ragweed with curled leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Young leaves of Virginia creeper in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Various spring flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Dry flowers of phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Resette of leaves and small white flowers of a plant in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Blue spiderwort (Tradescantia) flowers and hairy leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Leaves and flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2021
 Catkins and young leaves of oak near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Chinese jujube (Ziziphus jujuba) with glossy leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Dry leaves on ear-drops vine (Brunnichia ovata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Leaves of buttercup(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 White phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Flowers sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Bluebonnet (Lupinus) flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Deformed leaves and flowers of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Fresh leaves of nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Dried leaves of black cherry on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Dried fallen leaves of magnolia near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Rosette of leaves of woolly-white (Hymenopappus artemisiaefolius) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Dried leaves of box elder on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 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
 Flowers of Japanese honeysuckle (Lonicera japonica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Blue flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Pinkish flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Yellow flowers of aster family in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Flowers of zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Firewheel and bull nettle flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
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