 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
 Fluffy white seeds of groundsel bush (seepwillow, Baccharis halimifolia) in Bastrop State Park. Bastrop, Texas, October 13, 2019
 Fluffy seeds of groundsel bush (seepwillow, Baccharis halimifolia) in Lick Creek Park. College Station, Texas, October 1, 2024
 Fluffy seeds of groundsel bush (seepwillow, Baccharis halimifolia) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 1, 2024
 Fluffy white flowers of groundsel bush (seepwillow, Baccharis halimifolia) in Lick Creek Park. College Station, Texas, October 15, 2020
 Fluffy white flowers of groundsel bush (seepwillow, Baccharis halimifolia) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 30, 2008
 Fluffy flowers of Groundsel bush (seepwillow, Baccharis halimifolia) in Lake Bryan Park. Bryan, Texas, October 31, 2012
 Fluffy white flowers of groundsel bush (seepwillow, Baccharis halimifolia) in Lake Bryan Park. Bryan, Texas, October 10, 2012
 Groundsel bush (seepwillow, Baccharis halimifolia) with fluffy flowers on a lake shore in Lake Bryan Park. Bryan, Texas, October 24, 2012
 Groundsel bush (seepwillow, Baccharis halimifolia) in Bastrop State Park. Bastrop, Texas, October 13, 2019
 Groundsel bush (seepwillow, Baccharis halimifolia) in Lick Creek Park. College Station, Texas, October 1, 2024
 Groundsel bush (seepwillow, Baccharis halimifolia) in Lick Creek Park. College Station, Texas, September 29, 2022
 Snowy flowers of groundsel bush (seepwillow, Baccharis halimifolia) in dew on Deer Run Trail in Lick Creek Park. College Station, Texas, September 30, 2008
 Groundsel bush (seepwillow, Baccharis halimifolia) near Alum Creek in Lick Creek Park. College Station, Texas, April 12, 2024
 Groundsel bush (seepwillow, Baccharis halimifolia) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 1, 2024
 Groundsel bush (seepwillow, Baccharis halimifolia) on a lake shore in Lake Bryan Park. Bryan, Texas, October 24, 2012
 Groundsel bush (seepwillow, Baccharis halimifolia) with snowy flowers on a lake shore in Lake Bryan Park. Bryan, Texas, October 24, 2012
 Area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Groundsel bush (seepwillow, Baccharis halimifolia) and Chinese tallow (Sapium sebiferum) on a lake shore in Lake Bryan Park. Bryan, Texas, October 24, 2012
 Fluffy seeds of thistle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Fluffy seeds of a plant of aster family in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 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
 Giant reed (Arundo donax) in area of a former 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
 Seeds of Johnson grass (Sorghum halepense) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 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
 Fluffy seeds of silver bluestem grass (Bothriochloa laguroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Red seeds in a magnolia cone in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Seeds of giant reed (Arundo donax) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Seeds of maritime bluestem grass (Andropogon tenuispatheus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Fluffy seeds of ten-petal anemone (Anemone heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Fluffy seeds of ten-petal anemone (Anemone heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Weeds in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Goldenrod (Solidago) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Shoot of Amaranth 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
 Blooming creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Blooming johnsongrass (Sorghum halepense) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming rattlebush (Sesbania drummondii) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Fluffy seeds of Ten-petal anemone (basket anemone, Anemone heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Small blue aster flowers in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Female inflorescence of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 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
 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
 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
 Fragrant cudweed (sweet everlasting, Pseudognaphalium obtusifolium) in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Side view of a female inflorescence of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Bluebonnets and cutleaf groundsel flowers near Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 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
 Creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 A pond from a dam in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 25, 2012
 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
 Cutleaf groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Groundsel (butterweed, squaw weed, Senecio) with spider web in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2010.
 Field of bluebonnets and cutleaf groundsel flowers from a fence of Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Pond shores in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Some dry plants near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 A pond at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Pond with mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 A pond from a dam at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Reflections in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 A pond at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Foggy pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Forest near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Spider web near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Shore of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 25, 2012
 Dry leaf near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Shoot of amaranth near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 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
 Amaranth flowers near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Cloud reflections in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Accumulation of water in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 19, 2011
 Flower buds of groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Opening flowers of groundsel (butterweed, squaw weed, Senecio) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Rattlebush (Sesbania drummondii) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Freeze on bluebonnet (Lupinus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Giant reed (Arundo donax) 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
 Sprawling signalgrass (Urochloa reptans) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Flowers of smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Blooming smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Some grass in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 View in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Freeze on dewberry and marsh grasses near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Horse apples (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 16, 2008
 Inflorescence of sprawling signalgrass (Urochloa reptans) 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
 Close-up of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
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