 Hooker s eryngo (Eryngium hookeri) in Lick Creek Park. College Station, Texas, July 15, 2014
 Hooker s eryngo (Eryngium hookeri) in Lick Creek Park. College Station, Texas, June 22, 2012
 Flower of Hooker s eryngo (Eryngium hookeri) in Lick Creek Park. College Station, Texas, July 3, 2014
 Hooker s eryngo (Eryngium hookeri) on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 3, 2014
 Prickly flowers of Hooker s eryngo (Eryngium hookeri) in Lick Creek Park. College Station, Texas, July 3, 2014
 Hooker s eryngo (Eryngium hookeri) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
 Dried Hooker s eryngo (Eryngium hookeri) near the trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 21, 2022
 Hooker s eryngo (Eryngium hookeri) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, June 14, 2020
 Prickly flowers of Hooker s eryngo (Eryngium hookeri) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 16, 2019
 Hooker s eryngo (Eryngium hookeri) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
 Dry flowers of Hooker s eryngo (Eryngium hookeri) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 9, 2020
 Dodder (Cuscuta) on Hooker s eryngo (Eryngium hookeri) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Formerly flooded area overgrown by Hooker s eryngo (Eryngium hookeri) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2009
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 11, 2008
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 8, 2009
 Flowers of creeping Eryngo (Eryngium prostratum) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, June 19, 2019
 Button snakeroot (Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
 Yellow flower of Hooker s evening primrose (Oenothera hookeri) at sunrise in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 29, 2008
 Close-up of yellow flowers of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 5, 2008
 Large yellow flowers of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 26, 2008
 Large yellow flower of Hooker s evening primrose (Oenothera hookeri) and thick cylindrical ovaries behind it in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 21, 2008
 Large yellow flower on a stout erect stem of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 26, 2008
 Creeping Eryngo (Eryngium prostratum) near a pine forest on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, June 19, 2019
 Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
 Flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
 Flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Umbels of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 20, 2012
 Blooming button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Umbels of flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Spiny flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Spiny head of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 20, 2012
 Flower head of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
 Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
 Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
 Flowers of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
 Close up of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
 Flower heads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
 Dense apical umbel of flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
 Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 4, 2010
 Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
 Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) with a butterfly in dew in Lick Creek Park. College Station, Texas, June 1, 2010
 Spiny flowerhead of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, June 15, 2008
 Spiny flowerhead of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
 Flower heads in umbels of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
 Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 13, 2022
 Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) near Deer Run Trail in Lick Creek Park. College Station, Texas, June 8, 2008
 Blue eryngo (Eryngium planum in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, August 22, 2013
 Blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 28, 2017
 Blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 18, 2016
 Spiny button-like flower heads in umbels of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek park, on Deer Run Trail. College Station, June 15, 2008
 Button snakeroot (Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, May 10, 2012
 Flower heads of blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 29, 2016
 Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 24, 2013
 Blue eryngo (Eryngium planum) in Peter the Great Botanical Garden of Komarov Botanical Institute. Saint Petersburg, Russia, July 24, 2024
 Dry seed heads of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, October 11, 2012
 Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, May 22, 2012
 Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) near Deer Run Trail in Lick Creek Park. College Station, Texas, July 4, 2013
 Bud of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Coreopsis flower in Lick Creek Park. College Station, Texas, May 20, 2014
 Racoon Run Trail in Lick Creek Park. College Station, Texas, July 3, 2014
 Bark beetle taken from Lick Creek Park. College Station, Texas, July 26, 2014
 Blister beetle taken from Lick Creek Park. College Station, Texas, July 26, 2014
 Seeds of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Sewage line in Lick Creek Park. College Station, Texas, January 18, 2014
 Ironclad beetle taken from Lick Creek Park. College Station, Texas, July 26, 2014
 Blooming thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Raccoon Run Trail in Lick Creek Park. College Station, Texas, January 18, 2014
 Bark of water oak in Lick Creek Park. College Station, Texas, July 3, 2014
 Large coneflower in Lick Creek Park. College Station, Texas, July 1, 2014
 Bumblebee on thistle in Lick Creek Park. College Station, Texas, July 26, 2014
 Leaf of peppervine in Lick Creek Park. College Station, Texas, July 10, 2014
 Meadow pink flowers in Lick Creek Park. College Station, Texas, May 20, 2014
 Berries of pepperbush in Lick Creek Park. College Station, Texas, July 15, 2014
 Dry spikelet of grass in Lick Creek Park. College Station, Texas, July 26, 2014
 Partridge pea (Cassia fasciculata) in Lick Creek Park. College Station, Texas, May 20, 2014
 Meadow pink flower in Lick Creek Park. College Station, Texas, May 20, 2014
 Blooming evening primrose (Oenothera hookeri) in the Gardens at Texas A and M University. College Station, Texas, August 10, 2021
 A creek near Park Hudson Trail, view from Copperfield Drive. College Station, Texas, June 30, 2014
 Orange and black butterfly in Lick Creek Park. College Station, Texas, July 1, 2014
 Iron Bridge Trail in Lick Creek Park. College Station, Texas, July 3, 2014
 Water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 1, 2014
 Boardwalk of Raccoon Run Trail in Lick Creek Park. College Station, Texas, January 18, 2014
 Black and grey dragonfly in Lick Creek Park. College Station, Texas, July 1, 2014
 Leaves of a plant of pea family in Lick Creek Park. College Station, Texas, July 1, 2014
 Sneezeweed (Helenium amarum) in Lick Creek Park. College Station, Texas, July 15, 2014
 Katydid on seeds of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Red aphids on a leaf of frostweed in Lick Creek Park. College Station, Texas, July 15, 2014
 Partridge pea (Cassia fasciculata) in Lick Creek Park. College Station, Texas, July 1, 2014
 Butterfly pea (Centrosema virginianum) in Lick Creek Park. College Station, Texas, July 10, 2014
 Partridge pea (Cassia fasciculata) with a bee in Lick Creek Park. College Station, Texas, July 1, 2014
 Butterfly pea (Centrosema virginianum) in Lick Creek Park. College Station, Texas, July 1, 2014
 Turk s cap (Malvaviscus drummondii) in Lick Creek Park. College Station, Texas, July 15, 2014
 Orange headed turtle in Lick Creek Park. College Station, Texas, July 1, 2014
 Flower of summer thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 15, 2014
 Purple shoot of peppervine in Lick Creek Park. College Station, Texas, July 22, 2014
 Flower of summer thistle in Lick Creek Park. College Station, Texas, July 22, 2014
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