 Mexican hat flowers (Ratibida columnifera) 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
 Two Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 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, April 21, 2018
 Mexican hat flower (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 3, 2009
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 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, April 19, 2012
 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
 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
 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 (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 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 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 (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 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
 Small blue aster flowers in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Fourspike Heliotrope (Heliotropium procumbens) with small flowers near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Yellow flowers of aster family with stink bugs near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Amaranth flowers near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Aster flowers on fire ant mound near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
 Flowers of smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Yellow flowers of buttercup (Ranunculus) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Overgrown pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Flowers of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Flowers of floating primrose-willow (Ludwigia peploides) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Back lit flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Flowers of lemon beebalm (purple horsemint, Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Corn salad (valerianella) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Female flowers of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Prickleseed buttercup flower (Ranunculus muricatus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Horse-apple (Osage orange, Maclura) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Details of female flowers of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Close-up of female flowers of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Young grasshopper on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
 Mexican hat flower with a bee on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Various spring flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Field of flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Fragrant cudweed (sweet everlasting, Pseudognaphalium obtusifolium) in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Mexican Hat wildflower near a loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Bluebonnets and paintbrush flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 White phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Bluebonnets and cutleaf groundsel flowers near Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Mexican Hat wildflowers on roadside of loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 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
 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
 Flowers of black eyed susan (Rudbeckia hirta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Flowers of false dandelion (Pyrrhopappus carolinianus) 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
 Powdery mint mildew caused by fungus Neoerysiphe galeopsidis on henbit leaves near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Flowers of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Field of bluebonnets and cutleaf groundsel flowers from a fence of Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Field of black eyed susan flowers (Rudbeckia hirta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Flowers and fruits of coffeeweed (bigpod sesbania, Sesbania herbacea) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Prickly peas cactus (Opuntia) with yellow Senecio(?) flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Green caterpillar on flowers of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 White and yellow flowers of Japanese honeysuckle (Lonicera japonica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 White flowers of Japanese Privet bush (Ligustrum japonicum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Staminate flowers of creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Female flowers of creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) with male flowers in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Male flowers of creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Carpet of female flowers of creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Baby blue eyes flowers (flannel breeches, Nemophila phacelioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Pond with fog in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Pond in Washington-on-the-Brazos State Historic Site in fog. Washington, Texas, March 22, 2008
 Dam of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 24, 2009
 Dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 15, 2013
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 24, 2009
 A pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 25, 2012
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 11, 2014
 A pond from a dam in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Coreopsis near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Foggy pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Partially dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 A pond at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Dry reeds near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
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