 Giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Inflorescence of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Flowers of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Close-up of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Emerging inflorescence of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Giant reed (Arundo donax) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Seeds of giant reed (Arundo donax) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Giant reed (Arundo donax) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Flower buds of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Giant reed (Arundo donax) in Bee Creek Park. College Station, Texas, November 11, 2020
 Flower spike of largebracted plantain (Plantago aristata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Giant reed (Arundo donax) near the creek in Bee Creek Park. College Station, Texas, December 9, 2020
 Dry flower spike of plantain in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Batterfly on a thistle flower (Cirsium) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 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 spike of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Shoots of giant mustard (bastard cabbage, Rapistrum rugosum)(?) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Dry leaves of giant mustard (bastard cabbage, Rapistrum rugosum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2012
 Blooming giant mustard (bastard cabbage, Rapistrum rugosum) on a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Flower spike of beebalm (Monarda punctata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 16, 2019
 Flower spike of largebracted plantain (Plantago aristata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Amaranth flowers near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Shoot of amaranth near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Rattlebush (Sesbania drummondii) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Sprawling signalgrass (Urochloa reptans) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Balloon Vine (Cardiospermum halicacabum) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Mat of Carolina ponysfoot (Dichondra carolinensis) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Inflorescence of sprawling signalgrass (Urochloa reptans) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Leaves and flowrs of sprawling signalgrass (Urochloa reptans) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Spike of foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Giant ragweed with curled leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Wilted giant ragweed (Ambrosia trifida) after application of a herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Dry plant of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Blooming giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Small White Morning Glory (Pitted Morningglory, Ipomoea lacunosa) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Green flowers with pollen of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Giant ragweed (Ambrosia trifida) after application of herbicide that is causing it to wilt and shrivel in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Buttercup flower near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 8, 2009
 Flower spike of red buckeye (Southern buckeye, Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Flower spike of red buckeye (Southern buckeye, Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Violet flower of Ruellia nudiflora near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Flower of common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Prickleseed buttercup flower (Ranunculus muricatus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Prickleseed buttercup flower (Ranunculus muricatus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Trail behind a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Dry vegetation near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Weeds in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Some leafy shoot near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
 Amaranth plant in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Goldenrod (Solidago) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Shoot of Amaranth in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Flowers of smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Stamens and apocarpous gynoecium of prickleseed buttercup flower (Ranunculus muricatus) in Washington-on-the-Brazos State Historic Site, near a pond. Washington, February 15, 2009
 Nodding flower spike of Lizard-tail gaura (downy gaura, Gaura parviflora, G. mollis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 23, 2012
 Orange butterfly near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Foggy sunrise over a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Some blooming plant near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Stamens and apocarpous gynoecium of prickleseed buttercup flower (Ranunculus muricatus) in Washington-on-the-Brazos State Historic Site, near a pond. Washington, Texas, March 28, 2008
 Blooming rattlebush (Sesbania drummondii) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Balloon vine (Cardiospermum halicacabum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Blooming johnsongrass (Sorghum halepense) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Firedot lichen Caloplaca on limestone outcrop near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Winged loosestrife (Lythrum alatum) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Powderpuff (Mimosa strigillosa) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Giant ragweed in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 9, 2012
 Flower of a thustle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2020
 Lizard-tail gaura (downy gaura, Gaura parviflora, G. mollis) spike flower with stilt bugs (Jalysus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Lizard-tail gaura (downy gaura, Gaura parviflora, G. mollis) spike flower with mating stilt bugs (Jalysus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Orange Dacrymyces(?) mushrooms on a small dried tree in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Prickly pears (Opuntia) on exposed limestone rocks near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Inflorescense of Johnson grass (Sorghum halepense) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Blooming creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Seeds of Johnson grass (Sorghum halepense) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Shoot of balloon vine (Cardiospermum halicacabum) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Balloon Vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Coffeeweed (Sesbania herbacea) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Yerba de Tajo (Eclipta prostrata) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Mexican hat flower (Ratibida columnifera) 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
 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 9, 2020
 Spike of Canada wild rye (Elymus canadensis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Female inflorescence of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Orange Dacrymyces(?) mushrooms on bark of a small dried tree in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 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
 Female flowers of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Rosette of a plant of annual bastard cabbage (Rapistrum rugosum) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
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