 Violet Wood Sorrel (Oxalis violacea) in dew blooming at fall without leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2013
 Pink flower of Violet wood sorrel (Oxalis violacea, shamrock) on Prairie Trail in Brazos Bend State Park. Needville, Texas, April 22, 2008
 Violet wood sorrel (Oxalis violacea, shamrock) on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020
 Violet wood sorrel (shamrock, Oxalis violacea?) in Big Thicket park on Sundew Trail. Texas, October 11, 2008
 Pink flowers of Violet wood sorrel (Oxalis violacea, shamrock) on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020
 Spiderwort (Tradescantia) and yellow wood sorrel (oxalis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Bloomin violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Pink flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Violet wood sorrel (shamrock, Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Back lit flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Violet wood sorrel (shamrock, Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Violet wood sorrel (shamrock, Oxalis violacea?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Tiny purple flower of Violet wood sorrel (shamrock, Oxalis) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 30, 2008
 Moss and wood sorrel in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 4, 2021
 Pink wood sorrel (shamrock, Oxalis violacea?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Horse apple (osage orange, green brains) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Violet flower of Ruellia nudiflora near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Violet ruella (Ruellia nudiflora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Violet wood sorrel (Oxalis violacea) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 Back lit violet ruella (Ruellia nudiflora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
 Violet ruella (Ruellia nudiflora) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
 Violet wood sorrel (Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Violet wood sorrel (Oxalis violacea) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
 Old peace of wood on the bottom of a dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Pond in Washington-on-the-Brazos State Historic Site in fog. Washington, Texas, March 22, 2008
 A pond at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Rattlebush thickets around a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 16, 2008
 Blooming rattlebush (Sesbania drummondii) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 18, 2010
 Violet ruella (Ruellia nudiflora) with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Purple flowers of Violet wood sorrel (shamrock, Oxalis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
 Flower of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Flowers of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Back lit Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Flower of violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Violet Wood Sorrel (Oxalis violacea) blooming at fall without leaves in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 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
 Flowers of yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) with soldier flies (Stratiomyidae) in Big Thicket park on Sandhill Loop Trail. Texas, March 23, 2008
 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
 Orange butterfly near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 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
 Yellow woodsorrel (Oxalis stricta) on a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 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
 Rattlebush (Sesbania drummondii) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Wood oats (Chasmanthium latifolium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Close-up of a dark violet cap of young common Gymnopus mushroom on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Roots of vine in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 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
 Yerba de Tajo (Eclipta prostrata) 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
 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
 Balloon Vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 23, 2012
 Coffeeweed (Sesbania herbacea) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 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
 Mushrooms Xeromphalina tenuipes on rotting oak wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Goldenrod on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Fruits of magnolia tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Close-up 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
 Climbing hempvine (Mikania scandens) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Close up of horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 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
 Thin wide Trametes(?) polypore mushrooms on wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of young common Gymnopus mushrooms with dark violet caps on a side of a sandy path, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Puffball mushrooms Calvatia cyathiformis on open space near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Flower spike of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 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
 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
 Back lit flowers of balloon vine (Cardiospermum halicacabum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Green lynx spider on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Inflorescence of scarlet spiderling (Boerhavia diffusa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Hydnoid (tooth) resupinate mushroom Mycoaciella bispora on rotting wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Pink powderpuff (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Cowpen daisy (Verbesina encelioides) with skipper butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Tiny yellow flower of Melonette (Melothria pendula) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 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
 Flowers of cowpen daisy (golden crownbeard, Verbesina encelioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Slender orange bush lichen (Teloschistes exilis) on a twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
 Lichen with brightly colored and oddly shaped reproductive structures in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2021
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