 Rosette of leaves of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Leaves of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Winter rosette of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 White prickly poppy (Argemone albiflora) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 White prickly poppy (Argemone albiflora) with a katydid in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 White prickly poppy (Argemone albiflora) with katidid in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Flowers of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Ovary of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Blooming white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Blooming white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Upper view of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Late blooming white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 2, 2022
 Winter rosette of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Opening flower of white prickly poppy (pricklepoppy, Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Rosette of leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 7, 2024
 Basal leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Winter rosette of white prickly poppy (Argemone albiflora) with water drops in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Leaves with water drops of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Small rosette of leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 White flower of prickly poppy (pricklepoppy, Argemone albiflora) with orange center and delicate crinkled petals in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Flower of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Young leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Flower of prickly poppy (Argemone albiflora) with a beetle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Hover fly (syrphid) on a flower of w hite prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 White prickly poppy flower on field near Old Washington Town Site Loop Trail of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 White prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 White prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
 White prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
 White flower of prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 White prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2012
 Grasshopper on a white prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Young katydid on white prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Close up of a green grasshopper sitting on a white prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Leaves of prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Prickly poppy flower with immature katydid in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Seedling of bluebonnet (Lupinus) in sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Winter rosette of white prickly poppy (Argemone albiflora) in Bee Creek Park. College Station, Texas, January 28, 2023
 White prickly poppy (Argemone albiflora) in Birch Creek Unit of Lake Somerville State Park, Texas, April 29, 2012
 White prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 14, 2024
 White prickly poppy (Argemone albiflora) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 26, 2023
 Winter rosette of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 6, 2024
 Seedling of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Bluebonnet seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Sow thistle seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Close-up of a seedling and some moss on sandy soil in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Pad of prickly pears in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 White prickly poppy (Argemone albiflora) flowers on roadside of Road 364, near Sugarloaf Mountain. Gause, Texas, May 30, 2010
 Flower of white prickly poppy (Argemone albiflora) on roadside of Road 364, near Sugarloaf Mountain. Gause, Texas, May 30, 2010
 Texture of a pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Stamens of white prickly poppy (Argemone albiflora) flower on roadside of Road 364, near Sugarloaf Mountain. Gause, Texas, May 30, 2010
 Purplish pads of a prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Prickly pears (Opuntia) on exposed limestone rocks near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Seedling of sow thistle (Sonchus asper) on a mat of frog fruit (Phyla incisa) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Close-up of purple spots on pads of a prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Bluebonnet seedling with star eathball mushroom (Scleroderma polyrhizum) on a lawn near Robinson Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 5, 2020
 White prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 16, 2020
 White prickly poppy (Argemone albiflora) on north shore of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, May 6, 2018
 Blooming white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Flower of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 White prickly poppy (Argemone albiflora) on a road on north shore of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, May 6, 2018
 Leaves of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Large flower of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Delicate flower of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Honey bee hovering over a flower of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Side view of flower of white prickly poppy (Argemone albiflora) at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Flower of prickly poppy (Argemone albiflora) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
 Flower of white prickly poppy (Argemone albiflora) with a green metallic beetle at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Leaves of white prickly poppy (Argemone albiflora) on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Katydid nymph on prickly poppy (Argemone albiflora) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
 Close up of a flower of prickly poppy (Argemone albiflora) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
 Seedling of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 4, 2021
 Bluebonnet seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bluebonnet (lupin) seedling in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Close-up of snowy white resupinate polypore mushroom Incrustoporia biguttulata (Skeletocutis biguttulata) on a fallen juniper in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 Leaves of woolly-white (Hymenopappus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Common red corn poppy (Papaver rhoeas) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Emerging bluebonnet (lupin) seedling in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Feathery growth of snowy white resupinate polypore mushroom Incrustoporia biguttulata (Skeletocutis biguttulata) on a fallen juniper in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 Thin growth of snowy white resupinate polypore mushroom Incrustoporia biguttulata (Skeletocutis biguttulata) on a fallen juniper in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 Katydid nymph on a petal of prickly poppy (Argemone albiflora) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
 Small white fragile gilled mushrooms on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Small white fragile gilled mushrooms in grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Prickly pear pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Prickly pears in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Pad of prickly pears (Opuntia) with a bug in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Bluebonnet (lupin) seedling on fire ant mound in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Seedling of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Prickly pear (Opuntia) pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Close-up of small white fragile gilled mushrooms on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
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