 Dry plant of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Shoots of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 27, 2019
 Shoot of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Back lit leaf of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Reddish young leaves of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Fluffy seeds of thistle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Seeds of firewheel (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Prickly seeds of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Blackberry in poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Green berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Fresh leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 23, 2012
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Seeds of prairie-mimosa (Desmanthus illinoensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Milkweed (Asclepias), opened seedpod with seeds and fluff emerging, in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Back lit leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Dying poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Young leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Fall colors of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Tender leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Back lit shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Reddish shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Early fall color of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Green berries of poison ivy on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Tender pink leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Shoot of poison ivy on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Tender young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Young leaves of poison ivy on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Dry flowers of phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry plant of phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Armadillo on a sandy road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry seed heads of thistle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Western ironweed (Vernonia baldwinii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 Red seeds in a magnolia cone in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Dry seed heads of firewheel (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Antlion (doodlebug) funnel pits in sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry plants of lemon beebalm (Monarda citriodora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry flowers of lemon beebalm (Monarda citriodora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Seeds of Hedge Parsley (Torilis arvensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Seeds of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Tuft of fluff of milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 Seeds of Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Seeds of Wild Carrot (Daucus pusillus) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Bull nettle (Cnidoscolus texanus) on a sandy road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Half dry inflorescence of lemon beebalm (Monarda citriodora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Seed head of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry flowers of black eyed susan (Rudbeckia hirta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Seeds of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Dry seeds of prairie parsley (Polytaenia texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Seeds of giant reed (Arundo donax) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Milkweed seeds with attached coma (tuft of fluff) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Dry seeds of lemon beebalm (Monarda citriodora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Persimmon seeds in animal droppings on a trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Grasshopper on seeds of Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Fluffy seeds of a plant of aster family in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Close up of seeds of Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Prickly seeds of Hedge Parsley (Torilis arvensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Mushrooms Entonaema liquescens on a log in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 A field of wildflowers near Old Washington Town Site Loop Trail of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Lepiota mushroom under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Chlorosis (yellowing of leaves) of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Wilted giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Close-up of a dry seed head of wild carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Mushrooms Mycena corticola on a tree bark in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Pale Mycena mushrooms under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Lepista like gilled mushrooms under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Fungus Chromelosporium carneum on a rotting stick in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Underside of some bolete mushroom under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Four O clock (Mirabilis) with seeds at Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Four O clock seeds (Mirabilis) at Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Dry flowers and seeds of lemon beebalm (Monarda citriodora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Green grasshopper on seeds of Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Seeds of maritime bluestem grass (Andropogon tenuispatheus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Cross section of some bolete mushroom under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Gills of pale Mycena mushrooms under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Slime mold Fuligo cinerea on rotting wood in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 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
 Mature chanterelle mushrooms Cantharellus quercophilus under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Cap of sordid blewit mushroom (Lepista sordida) under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Seeds of Johnson grass (Sorghum halepense) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Fluffy seeds of silver bluestem grass (Bothriochloa laguroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Gills of sordid blewit mushroom (Lepista sordida) under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Groundsel bush (seepwillow, Baccharis halimifolia) with seeds in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Cross section of sordid blewit mushroom (Lepista sordida) under small elm and oak trees in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Fluffy seeds of groundsel bush (seepwillow, Baccharis halimifolia) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Nodding spike of Lizard-tail gaura (Gaura parviflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
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