 Blooming heartleaf nettle (ortiguilla, Urtica chamaedryoides) in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Heartleaf nettle (ortiguilla, Urtica chamaedryoides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Heartleaf nettle (Urtica chamaedryoides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Heartleaf nettle (Urtica chamaedryoides) at Lake Somerville Trailway under oaks near Flag Pond, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Heartleaf nettle (Urtica chamaedryoides) with flowers at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Bull Nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Fresh leaves of nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Shoot of nettle with water drops in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Leaves of sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaves of bull thistle (Cirsium horridulum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Rosette of leaves of bull thistle (Cirsium horridulum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Buttercup (Ranunculus) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Deformed plant in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Corn salad (Valerianella) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Leaves of nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Horse nettle(?) (Solanum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Bull nettle flowers with a caterpillar(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Horse nettle(?) (Solanum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Firewheel and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Yellow flowers of buttercup (Ranunculus) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Coffeeweed (Sesbania herbacea) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Engelmann daisy and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Fruit of Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Indian paintbrush and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Firewheel and bull nettle flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Leaves of Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 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
 Annual bastard cabbage (Rapistrum rugosum) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Prickleseed buttercup flower (Ranunculus muricatus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Climbing hempvine (Mikania scandens) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Blooming bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Bull nettle (Mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 18, 2008
 Flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Flower of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Blooming Bull Nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2012
 Bull nettle (Cnidoscolus texanus) in bloom in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Blooming bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Fruits bull nettle (Cnidoscolus texanus) collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Bull nettle (mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Shoot of Amaranth in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Bull nettle (Cnidoscolus texanus) on a sandy road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Young leaves of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Flower buds of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Young plant of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Alyssum like flower with bull nettle on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Bull nettle (mala mujer, Cnidoscolus texanus) flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 White flowers of Bull Nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2012
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Bull nettle (mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Bull nettle (Cnidoscolus texanus) and pink phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 White flower of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Bull nettle (Mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Close-up of a flower of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Flowers of Bull nettle (mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Flower buds of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2023
 Bull nettle (mala mujer, Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Crab spider on a white flower of bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2009
 White flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 White flower of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Mexican hat flower (Ratibida columnaris) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Giant reed (Arundo donax) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 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 rattlebush (Sesbania drummondii) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming johnsongrass (Sorghum halepense) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Balloon vine (Cardiospermum halicacabum) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Small blue aster flowers in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 Prickly flow buds of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fruit of Bull nettle (Cnidoscolus texanus) armed with stinging hairs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Spider on white flowers of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Green lynx spider on bull nettle (mala mujer) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
 Chlorosis (yellowing of leaves) of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Prickly flower buds of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Green lynx spider on bull nettle near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
 Young folded leaf of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Prickly flower buds of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 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
 Winter rosette of sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Prickly flower buds on a shoot of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Yellowing of leaf tissue (chlorosis) of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 2, 2022
 Bull nettle (mala mujer, Cnidoscolus texanus) armed with stinging hairs in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 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
 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
 Fragrant cudweed (sweet everlasting, Pseudognaphalium obtusifolium) in a former pond area in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
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