![](../../pictures/archives/compress/2014/1409/jpeg/01t.jpg) Yellow Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
![](../../pictures/archives/compress/2008/637/jpeg/20t.jpg) Long, cone-shaped receptacle of Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/644/jpeg/14t.jpg) Two Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
![](../../pictures/archives/compress/2020/2699/jpeg/17t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2009/741/jpeg/24t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
![](../../pictures/archives/compress/2018/2254/jpeg/01t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 2, 2018
![](../../pictures/archives/compress/2014/1408/jpeg/14t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
![](../../pictures/archives/compress/2012/1044/jpeg/08t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
![](../../pictures/archives/compress/2012/1044/jpeg/09t.jpg) Mexican hat flower (Ratibida columnifera) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
![](../../pictures/archives/compress/2014/1408/jpeg/25t.jpg) Orange Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
![](../../pictures/archives/compress/2018/2248/jpeg/05t.jpg) Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
![](../../pictures/archives/compress/2009/745/jpeg/23t.jpg) Cylindrical part of a flower of Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
![](../../pictures/archives/compress/2008/663/jpeg/24t.jpg) 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
![](../../pictures/archives/compress/2022/3146/jpeg/21t.jpg) Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
![](../../pictures/archives/compress/2018/2263/jpeg/02t.jpg) Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
![](../../pictures/archives/compress/2020/2699/jpeg/18t.jpg) Blooming Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2022/3146/jpeg/19t.jpg) Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
![](../../pictures/archives/compress/2024/3537/jpeg/19t.jpg) Field of Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
![](../../pictures/archives/compress/2018/2263/jpeg/05t.jpg) Mexican hat flowers (Ratibida columnifera) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
![](../../pictures/archives/compress/2018/2263/jpeg/03t.jpg) Dark colored Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
![](../../pictures/archives/compress/2022/3109/jpeg/13t.jpg) Leaves of Mexican hat flowers (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
![](../../pictures/archives/compress/2008/663/jpeg/20t.jpg) Mexican hat flower with a bee on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2021/3013/jpeg/03t.jpg) Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
![](../../pictures/archives/compress/2008/648/jpeg/08t.jpg) Cylindrical flowerhead of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
![](../../pictures/archives/compress/2010/858/jpeg/07t.jpg) Flower head of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
![](../../pictures/archives/compress/2020/2698/jpeg/12t.jpg) Mexican hat flower (Ratibida columnaris) with a caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2020/2698/jpeg/13t.jpg) Mexican hat flowers (Ratibida columnaris) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2020/2809/jpeg/13t.jpg) Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
![](../../pictures/archives/compress/2020/2809/jpeg/14t.jpg) 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
![](../../pictures/archives/compress/2008/667/jpeg/16t.jpg) Early fall color of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
![](../../pictures/archives/compress/2010/861/jpeg/17t.jpg) Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
![](../../pictures/archives/compress/2010/858/jpeg/06t.jpg) Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
![](../../pictures/archives/compress/2020/2698/jpeg/09t.jpg) Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2023/3339/jpeg/16t.jpg) Basal leaves of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
![](../../pictures/archives/compress/2008/663/jpeg/23t.jpg) Mexican hat flowers at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2008/641/jpeg/16t.jpg) Golden headed weevil (Compsus auricephalus) snout beetle on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 10, 2008
![](../../pictures/archives/compress/2008/639/jpeg/04t.jpg) Thistle flower near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
![](../../pictures/archives/compress/2008/627/jpeg/16t.jpg) Vervain flower in dew in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/631/jpeg/15t.jpg) Yellow lemon paintbrush flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
![](../../pictures/archives/compress/2008/627/jpeg/17t.jpg) Fleabane daisy(?) flower in dew in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/627/jpeg/14t.jpg) Indian paintbrush flower in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/657/jpeg/13t.jpg) Late flower of Indian paintbrush near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/673/jpeg/04t.jpg) Tiny yellow flower of Melonette (Melothria pendula) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
![](../../pictures/archives/compress/2008/627/jpeg/18t.jpg) Calyx of winecup flower (Callirhoe involucrata) in dew in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/644/jpeg/12t.jpg) Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
![](../../pictures/archives/compress/2008/638/jpeg/01t.jpg) Yellow Linum berlandieri (stiff-stem Flax) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/641/jpeg/17t.jpg) Two Mexican hat flowers grown together in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 10, 2008
![](../../pictures/archives/compress/2008/644/jpeg/13t.jpg) Group of Mexican hat flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
![](../../pictures/archives/compress/2008/663/jpeg/19t.jpg) Vervain (Verbena) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2008/663/jpeg/17t.jpg) Snow-on-the-prairie (Euphorbia bicolor) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2007/588/jpeg/01t.jpg) Mexican Hat wildflower near a loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
![](../../pictures/archives/compress/2009/786/jpeg/09t.jpg) Tiny yellow flower like evening primrose in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2009
![](../../pictures/archives/compress/2010/866/jpeg/23t.jpg) Young grasshopper on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
![](../../pictures/archives/compress/2007/587/jpeg/26t.jpg) Mexican Hat wildflowers on roadside of loop trail in northern part of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
![](../../pictures/archives/compress/2008/639/jpeg/02t.jpg) Bumblebee on a Texas dandelion flower near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
![](../../pictures/archives/compress/2009/786/jpeg/11t.jpg) Bee on pink powderpuff flower (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
![](../../pictures/archives/compress/2007/588/jpeg/03t.jpg) 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
![](../../pictures/archives/compress/2008/621/jpeg/18t.jpg) Indian paintbrush (Castilleja indivisa) with oval bright-reddish pink flower leaf bracts in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/639/jpeg/03t.jpg) Texas frog-fruit flower (Phyla incisa, Lippia, fogfruit) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
![](../../pictures/archives/compress/2008/657/jpeg/11t.jpg) Late blooming Indian paintbrush (Castilleja indivisa) with oval bright-reddish pink flower leaf bracts near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/663/jpeg/18t.jpg) Dehisced seedpod releasing seeds, with attached coma (tuft of fluff) of milkweed (Asclepias) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2008/627/jpeg/19t.jpg) Indian paintbrush (Castilleja indivisa) with oval bright-reddish pink flower leaf bracts and cut-off funnel-like red-tipped calyx in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/625/jpeg/04t.jpg) Opening flower of Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
![](../../pictures/archives/compress/2008/651/jpeg/12t.jpg) Yellow daisy in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
![](../../pictures/archives/compress/2008/672/jpeg/24t.jpg) Goldenrod on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
![](../../pictures/archives/compress/2008/674/jpeg/21t.jpg) Late blooming Indian paintbrush (Castilleja indivisa) with oval bright-reddish pink flower leaf bracts and cut-off funnel-like red-tipped calyx on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
![](../../pictures/archives/compress/2008/633/jpeg/03t.jpg) Bluebonnet in morning dew near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
![](../../pictures/archives/compress/2008/627/jpeg/10t.jpg) Bluebonnet flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/623/jpeg/18t.jpg) Bluebonnet flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, March 28, 2008
![](../../pictures/archives/compress/2008/633/jpeg/21t.jpg) Yellow and pink Indian paintbrush in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
![](../../pictures/archives/compress/2008/633/jpeg/04t.jpg) Paintbrush and bluebonnet in morning dew near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
![](../../pictures/archives/compress/2008/627/jpeg/09t.jpg) Bluebonnet and paintbrush flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/627/jpeg/12t.jpg) Morning dew on bluebonnet leaf in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/672/jpeg/25t.jpg) Green lynx spider on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
![](../../pictures/archives/compress/2008/631/jpeg/20t.jpg) Winecup flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
![](../../pictures/archives/compress/2008/648/jpeg/18t.jpg) Verbena (vervain) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
![](../../pictures/archives/compress/2008/621/jpeg/23t.jpg) Bluebonnet flower in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/638/jpeg/26t.jpg) Prairie parsley flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
![](../../pictures/archives/compress/2008/638/jpeg/03t.jpg) Thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/621/jpeg/21t.jpg) Paintbrush flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/621/jpeg/20t.jpg) Paintbrush flower in morning dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/637/jpeg/23t.jpg) Prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/621/jpeg/22t.jpg) Indian paintbrush flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/631/jpeg/09t.jpg) Parts of paintbrush flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
![](../../pictures/archives/compress/2008/638/jpeg/02t.jpg) Purple thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/627/jpeg/23t.jpg) White gaura flower in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/621/jpeg/19t.jpg) Bluebonnet flower in morning dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
![](../../pictures/archives/compress/2008/627/jpeg/13t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/627/jpeg/11t.jpg) Bluebonnet and showy primrose flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/673/jpeg/01t.jpg) Pink powderpuff (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
![](../../pictures/archives/compress/2008/633/jpeg/05t.jpg) Showy evening primrose in morning dew near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
![](../../pictures/archives/compress/2008/688/jpeg/09t.jpg) Bushy bluestem (Andropogon glomeratus) in Washington-on-the-Brazos State Historic Site, on Loop Trail. Washington, Texas, November 16, 2008
![](../../pictures/archives/compress/2008/657/jpeg/10t.jpg) Immature katydid on green milkweed near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/657/jpeg/12t.jpg) Zizotes milkweed (Asclepias oenotheroides) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/625/jpeg/10t.jpg) Texas dandelion flower in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
![](../../pictures/archives/compress/2008/648/jpeg/21t.jpg) Indian blanket (Gaillardia pulchella) flower with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
![](../../pictures/archives/compress/2008/627/jpeg/22t.jpg) Baby blue eyes flower in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2008/637/jpeg/24t.jpg) Black-eyes susan flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
![](../../pictures/archives/compress/2008/631/jpeg/19t.jpg) White bishops weed-like flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
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