 Flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Back lit flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Freeze on balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Balloon Vine (Cardiospermum halicacabum) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Balloon vine (Cardiospermum halicacabum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Shoot of balloon vine (Cardiospermum halicacabum) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Orange butterfly near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Some blooming plant 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
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Powderpuff (Mimosa strigillosa) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Yerba de Tajo (Eclipta prostrata) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Red berries of Carolina moonseed vine (Cocculus carolinus, snailseed vine, coralbeads, redberry) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
 Fruits of balloon vine (Cardiospermum halicacabum) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
 Close up of horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Balloon vine (Cardiospermum halicacabum) on a shore of Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2020
 Fruit of balloon vine (Cardiospermum halicacabum) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 6, 2019
 Roots of vine in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Fruits of balloon vine (Cardiospermum halicacabum) in area of dried marshes at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 6, 2019
 Pond with fog in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 25, 2012
 Coreopsis near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Shore of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 25, 2012
 Last year rattlebush in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Pond shores in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Blue dragonfly near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Some dry plants near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Spider web near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Deers at a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2012
 Pond with mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Bluebonnet rosettes near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2012
 Sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Sunflower and lemon beebalm near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Brown butterfly near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 6, 2012
 Caps of Pleurotaceae or may be Entoloma mushrooms on a vine of mustang grape in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 7, 2021
 Lemon beebalm (Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 25, 2012
 Old peace of wood on the bottom of a dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 A pond filling by water after a draught in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Lemon beebalm (Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Creeping bluebonnet rosettes near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2012
 Freeze on bluebonnet (Lupinus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 8, 2012
 Powderpuff (Mimosa strigillosa) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 25, 2012
 Flower of common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Freeze on dewberry and marsh grasses near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Lemon beebalm (Monarda citriodora) blooming near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Indian blanket (Gaillardia pulchella, firewheel) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Horse apples (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Ripe berries of Carolina moonseed vine (Cocculus carolinus, snailseed vine, coralbeads, redberry) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2008
 Lemon beebalm (purple horsemint, Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Indian blanket and lemon beebalm (Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Freeze on dry fragrant flatsedge (Cyperus odoratus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Lemon beebalm (purple horsemint, Monarda citriodora) and a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Lemon beebalm (purple horsemint, Monarda citriodora) growing near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Back lit lemon beebalm (purple horsemint, Monarda citriodora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 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
 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
 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
 Mat of Carolina ponysfoot (Dichondra carolinensis) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Coffeeweed (Sesbania herbacea) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Climbing hempvine (Mikania scandens) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Flowers of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Inflorescence of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Inflorescence of sprawling signalgrass (Urochloa reptans) 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
 A road in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Spider web in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Puffball mushrooms Calvatia cyathiformis on open space near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Horse apple (osage orange, green brains) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 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
 Emerging inflorescence of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Flower spike of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Violet wood sorrel (shamrock, Oxalis violacea?) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Mustang grape vine with tendrils in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Bud of mustang grape vine in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Rattan vine around a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Scarlet spiderling (Boerhavia diffusa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Dry leaves on ear-drops vine (Brunnichia ovata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Spider on ear-drops vine (Brunnichia ovata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 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
 Caltrop flower (puncturevine, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Blooming giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Young shoot of greenbrier vine (prickly-ivy, smilax, sarsaparilla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 American buckwheat vine (ear-drops, Brunnichia ovata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Goldenrod and buckwheat vine (ear-drops, Brunnichia ovata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Dark berries of greenbrier vine (prickly-ivy, smilax, sarsaparilla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2008
 Shoot of Virginia creeper vine on a tree, with patches of various lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Green flowers with pollen of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
|