 Flower buds of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 2, 2023
 Yellow flower of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 31, 2024
 Fluffy seed head of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 27, 2023
 Flower bud of sow thistle (Sonchus oleraceus) in Bee Creek Park. College Station, Texas, March 21, 2024
 Sow thistle (Sonchus oleraceus) on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 16, 2024
 Winter rosette of sow thistle (Sonchus oleraceus) on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 16, 2024
 Sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 31, 2024
 Purple winter rosette of sow thistle (Sonchus oleraceus) on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 16, 2024
 Flowers of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 31, 2024
 Yellow flowers of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 31, 2024
 Fluffy seed head of sow thistle (Sonchus oleraceus) in Lick Creek Park. College Station, Texas, March 28, 2024
 Rosette of sow thistle (Sonchus oleraceus) with a flower bud under snow on a golf course on campus of Texas A and M University. College Station, Texas, February 18, 2021
 Rosette of sow thistle (Sonchus oleraceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
 Frosted sow thistle (Sonchus oleraceus) near the creek in Bee Creek Park. College Station, Texas, January 4, 2022
 Flower and seeds of sow thistle (Sonchus oleraceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Young plant of sow thistle (Sonchus oleraceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Rosette of sow thistle (Sonchus oleraceus) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
 Ice on leaves of sow thistle (Sonchus oleraceus)(?) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
 Sow thistle (Sonchus oleraceus) under icy snow on a golf course on campus of Texas A and M University. College Station, Texas, February 18, 2021
 Icy rosettes of sow thistle (Sonchus oleraceus) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
 Icy basal leaves of sow thistle (Sonchus oleraceus)(?) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
 Blooming sow thistle (Sonchus oleraceus) under snow on a golf course on campus of Texas A and M University. College Station, Texas, February 18, 2021
 Yellow flower and white fluffy seeds of sow thistle (Sonchus oleraceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 Yellow flower of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Flower of smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Sow thistle (Sonchus oleraceus) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 10, 2009
 Thistle (Cirsium engelmannii) flower buds in Lick Creek Park. College Station, Texas, June 10, 2012
 Smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 20, 2015
 Purple leaves of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Flowers of sow thistle (Sonchus oleraceus) on a lawn in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 10, 2009
 Opening flowers of sow thistle (Sonchus oleraceus) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 24, 2009
 Blooming sow thistle (Sonchus oleraceus) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2024
 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 sow thistle (Sonchus oleraceus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Smooth sow thistle (Sonchus oleraceus) near Al Khor Hospital. Qatar, January 9, 2015
 Sow thistle (Sonchus oleraceus) in Antique Rose Emporium. Independence, Texas, March 20, 2019
 Sow thistle (Sonchus oleraceus) in Antique Rose Emporium. Independence, Texas, October 5, 2019
 Blooming sow thistle (Sonchus oleraceus) in Antique Rose Emporium. Independence, Texas, April 4, 2022
 Blooming sow thistle (Sonchus oleraceus) in Antique Rose Emporium. Independence, Texas, March 2, 2020
 Flower buds of possum-haw holly in Lick Creek Park. College Station, Texas, March 10, 2023
 Flower buds of rattan vine in Lick Creek Park. College Station, Texas, March 20, 2023
 Fruits of smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Leaves of smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Flower buds of squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Winter rosette of sow thistle (Sonchus oleraceus) in Washington Cemetery. Washington, Texas, January 7, 2024
 Flower buds of salt-marsh fleabane (Pluchea odorata) in Lick Creek Park. College Station, Texas, September 13, 2023
 Flower buds of Great Plains ragwort (Packera tampicana) in Lick Creek Park. College Station, Texas, March 10, 2023
 Flower buds of Great Plains ragwort (Packera tampicana) in Lick Creek Park. College Station, Texas, March 2, 2023
 Flower buds of a thistle (Cirsium) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 26, 2023
 Seed head of smooth sow thistle (Sonchus oleraceus) in a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, January 23, 2016
 Smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 White flower buds of salt-marsh fleabane (Pluchea odorata) in Lick Creek Park. College Station, Texas, September 13, 2023
 Rosette of sow thistle (Sonchus oleraceus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Flowers of Smooth sow thistle (Sonchus oleraceus) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Purple winter rosette of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Violet basal leaves of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Flower bud of yellow thistle (Bull thistle, Cirsium horridulum) in Lick Creek Park. College Station, Texas, April 14, 2019
 Flower bud of yellow thistle (Bull thistle, Cirsium horridulum) in Lick Creek Park. College Station, Texas, April 11, 2018
 Flower of yellow thistle (Bull thistle, Cirsium horridulum) in Lick Creek Park. College Station, Texas, April 5, 2019
 Rosette of thistle (Cirsium) in Lick Creek Park. College Station, Texas, February 27, 2023
 Smooth sow thistle (Sonchus oleraceus) grown near acacia tree in windblown sand on roadside of Salwa Road in area of Khashem Al Nekhsh. Southern Qatar, March 18, 2016
 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
 Flower of yellow thistle (Bull thistle, Cirsium horridulum) with a bronze beetle in Lick Creek Park. College Station, Texas, April 5, 2019
 Flower bud of yellow thistle (Bull thistle, Cirsium horridulum) on Post Oak Trail in Lick Creek Park. College Station, Texas, March 26, 2019
 Seeds of yellow thistle (Bull thistle, Cirsium horridulum) on sewage line right-of-way in Lick Creek Park. College Station, Texas, May 2, 2023
 Arrangement of seeds of yellow thistle (Bull thistle, Cirsium horridulum) on sewage line right-of-way in Lick Creek Park. College Station, Texas, May 2, 2023
 Fluffy seeds of yellow thistle (Bull thistle, Cirsium horridulum) on sewage line right-of-way in Lick Creek Park. College Station, Texas, May 2, 2023
 Yellow thistle (Bull thistle, Cirsium horridulum) on a forest opening over a sewage line in Lick Creek Park. College Station, Texas, March 31, 2023
 Immature seed head of yellow thistle (Bull thistle, Cirsium horridulum) on sewage line right-of-way in Lick Creek Park. College Station, Texas, May 2, 2023
 Basal leaves of yellow thistle (Bull thistle, Cirsium horridulum) on a pipeline clearing in Lick Creek Park. College Station, Texas, February 25, 2021
 Winter rosette of yellow thistle (Bull thistle, Cirsium horridulum) on a pipeline clearing in Lick Creek Park. College Station, Texas, February 25, 2021
 Large thorny rosette of yellow thistle (Bull thistle, Cirsium horridulum) on a pipeline clearing in Lick Creek Park. College Station, Texas, February 25, 2021
 Thistle flower in Lick Creek Park. College Station, Texas, July 17, 2009
 Flower buds of spiderwort (tradescantia) in Lick Creek Park. College Station, Texas, March 18, 2010.
 Spiderwort (tradescantia) flower buds in Lick Creek Park. College Station, Texas, April 18, 2012
 Flower of summer thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Flower of summer thistle in Lick Creek Park. College Station, Texas, July 22, 2014
 Flower bud of summer thistle in Lick Creek Park. College Station, Texas, July 22, 2014
 Flower of thistle (Cirsium) in Lick Creek Park. College Station, Texas, August 4, 2021
 Opening thistle flower in Lick Creek Park. College Station, Texas, July 17, 2009
 Flower buds of mustang grape on Deer Run(?) Trail in Lick Creek Park. College Station, Texas, May 7, 2009
 Flower buds on a shoot of greenbrier (Smilax) in Lick Creek Park. College Station, Texas, March 12, 2024
 Flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 26, 2012
 Flower bud of a thistle on Iron Bridge in Lick Creek Park. College Station, Texas, June 8, 2010
 Thistle (Cirsium engelmannii) flower in Lick Creek Park. College Station, Texas, June 30, 2012
 Flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 22, 2012
 Thistle (Cirsium engelmannii) flower bud in Lick Creek Park. College Station, Texas, June 10, 2012
 Flower buds of red yucca (Hesperaloe parviflora) on a lawn in Lick Creek Park. College Station, Texas, April 29, 2022
 Flower buds of green milkweed (Asclepias obovata(?)) taken from Lick Creek Park. College Station, Texas, July 29, 2014
 Flower buds of green milkweed (Asclepias obovata(?)) in Lick Creek Park. College Station, Texas, August 6, 2013
 Young leaves and flower buds of thistle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Globular flower bud of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 10, 2012
 Close up of a flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 22, 2012
 Close up of a thistle (Cirsium engelmannii) flower bud in Lick Creek Park. College Station, Texas, June 10, 2012
 Thistle flower heads (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 7, 2012
 Spiny flower bud of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 20, 2012
 Opening thistle flower in Lick Creek park, on Iron Bridge Trail. College Station, June 15, 2008
 Emerging thistle flower in Lick Creek park, on Iron Bridge Trail. College Station, June 15, 2008
 Winter rosette of thistle (Cirsium) in dew in Lick Creek Park. College Station, Texas, January 23, 2023
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