 Pink wood sorrel (shamrock, Oxalis violacea?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Violet wood sorrel blooming at fall without leaves in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Violet wood sorrel blooming at fall (without leaves) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
 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) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 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 (shamrock, Oxalis violacea?) in Big Thicket park on Sundew Trail. Texas, October 11, 2008
 Flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Bloomin violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023
 Back lit 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 (Oxalis violacea, shamrock) on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020
 Pink flowers of 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?) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Purple flowers of Violet wood sorrel (shamrock, Oxalis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
 Violet iris in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Violet daylily (Hemerocallis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Flower of violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Some small violet like flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 29, 2018
 Violet wood sorrel (Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Orange iris in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Back lit 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
 Flower of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Some hairy berry on a bush in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Moth on smartweed like flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blue vetch (Vicia) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Violet flowers of ginger(?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
 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
 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
 Yerba de Tajo (Eclipta prostrata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Scarlet pimpernel (Anagallis arvensis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Hippeastrum hybrid Amorette (Amaryllis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Crimson clover (Trifolium incarnatum) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Scarlet pimpernel (Anagallis arvensis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Venus looking glass (Triodanis perfoliata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Violet wood sorrel (Oxalis violacea) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
 Purple flowers of broom-wood (Melochia pyramidata var. pyramidata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Some small white star like flowers on a tree in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Flower of Venus looking glass (Triodanis perfoliata) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blue water lily near Visitor Center in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blooming Florida leucothoe (Agarista populifolia) 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
 Annual blue-eyed grass (Sisyrinchium rosulatum) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blooming river spiderwort (Tradescantia fluminensis) in a forest in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Violet leaves of Persian Shield (Strobilanthes dyeranus) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 14, 2012
 White flower of river spiderwort (Tradescantia fluminensis) in a forest in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blooming bush of rough-leaf dogwood (Cornus drummondii) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 White lawn clover (Trifolium repens) with Lygus bug nymph in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Texan crescent butterfly (Anthanassa texana) on orange daisy in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Greenish-purple flowers of Strawberry bush (Euonymus americana) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Yellow blue-eyed grass (fairy stars, Sisyrinchium exile) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Water lily in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Crinum lily in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Red flowers of jatropha in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Lily in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 14, 2009
 Sprinkled iris in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Blooming ginger in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Coleus in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Some vegetative shoot in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Japanese pittosporum (Pittosporum tobira Variegata ) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Pink Mist Cuphea (Cuphea varia) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Smartweed (Persicaria pensylvanicum, Polygonum pensylvanicum) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Green milkweed (Asclepias viridiflora) for sale made from socket head cap screws in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Freesia laxa (Lapeirousia laxa, Anomatheca cruenta) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Smartweed like flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 14, 2009
 Fern fiddlehead in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 14, 2009
 Small mullein in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Purple coneflower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Ornamental lettuce in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 14, 2009
 Asphodel flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Begonia flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
 Camellia flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Bamboo trunks in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Orange daylily (Hemerocallis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Flower of asphodel in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Turnsole (Heliotropium) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Blue larkspur (Delphinium) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Leaves of caladium in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Pink azalea in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Spider flower (Cleome) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Pink gladiolus in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Oriental false hawksbeard (Youngia japonica, Crepis japonica) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 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
 Indian pink (Spigelia marilandica) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Waterleaf like blue flowers in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Red sage (Salvia microphylla) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Shoot of maple tree in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Squaw-weed flowers in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
 Sow thistle (Sonchus arvensis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
 Goldenrod on back trail in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Portulaca (purslane) near a pond in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 3, 2009
 Back lit leaf of caladium in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Pokeweed (Phytolacca americana) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Lizard s Tail (Saururus cernuus) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Bear s breeches (Acanthus mollis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
 Snowflakes (Leucojum aestivum) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
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