 Close up of yellow flowers of common wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019
 Yellow flower of wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) with soldier flies (Stratiomyidae) in Big Thicket park on Sandhill Loop Trail. Texas, March 23, 2008
 Yellow wood sorrel (shamrock, Oxalis dillenii?) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Common yellow wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019
 Yellow flowers of common wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019
 Blooming common yellow wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019
 Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Spiderwort (Tradescantia) and yellow wood sorrel (oxalis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Yellow wood sorrel (Oxalis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 26, 2022
 Flowers of yellow wood sorrel (Oxalis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 26, 2022
 Blooming slender trillium (Trillium gracile) and yellow wood sorrel (Oxalis) on Fringe Tree Trail in Little Thicket Nature Sanctuary. Cleveland, Texas, March 23, 2024
 Yellow wood sorrel (shamrock, Oxalis dillenii?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Yellow wood sorrel (Oxalis) on Richards Loop Trail in Sam Houston National Forest. Montgomery County, Texas, March 22, 2026
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