 Blooming cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 29, 2022
 Green burs of cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 29, 2022
 Cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
 Leaves of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
 Shoot of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
 Teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Underside of leaves of cocklebur (Xanthium strumarium) damaged by cocklebur rust fungus (Puccinia xanthii), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Upper and lowers sides of leaves of cocklebur (Xanthium strumarium) with cocklebur rust fungus (Puccinia xanthii), over sewage line in Lick Creek Park. College Station, Texas, August 15, 2023
 Biseptate teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Teliospores (in KOH, low magnification) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium) collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Details of teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Large teliospores (in KOH) of cocklebur rust fungus (Puccinia xanthii) from underside of leaves of cocklebur (Xanthium strumarium), collected over sewage line in Lick Creek Park a day before. College Station, Texas, August 13, 2023
 Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 13, 2023
 Bur of rough Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, October 9, 2012
 Staminate flowers of cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 16, 2012
 Green bur of Rough Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 24, 2012
 Burs of Rough Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 24, 2012
 Mature bur of Rough Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, October 11, 2012
 Fall colors of cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, November 1, 2012
 Ripening burs of Rough Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, October 11, 2012
 Dry seeds of rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 31, 2021
 "Porcupine egg" of cocklebur (Xanthium strumarium) near Onion Creek in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Dry last year cocklebur (Xanthium strumarium) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flowers of cocklebur (Xanthium strumarium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, September 14, 2024
 Bur of cocklebur (Xanthium strumarium) on north shore of Lake Somerville. Texas, September 27, 2008
 Burs of cocklebur (Xanthium strumarium) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, September 14, 2024
 Cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 16, 2020
 Cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 6, 2020
 Shoot of cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Dry burs of cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Rough Cocklebur (Xanthium strumarium) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 31, 2021
 Rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 6, 2019
 Rough Cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021
 Blooming rough cocklebur (Xanthium strumarium) on a shore of Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2020
 Grasshopper on rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Flowers of rough cocklebur (Xanthium strumarium) on a shore of Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2020
 Flowers of rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2021
 Green flowers of cocklebur (Xanthium strumarium) on a shore of Lake Somerville in Birch Creek Unit of Somerville Lake State Park. Texas, September 8, 2012
 Staminate flowers of cocklebur (Xanthium strumarium) on a shore of Lake Somerville in Birch Creek Unit of Somerville Lake State Park. Texas, September 8, 2012
 "Porcupine eggs" of cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Seed capsules of cocklebur (Xanthium strumarium) taken from Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 4, 2020
 Close-up of seed capsules of cocklebur (Xanthium strumarium) taken from Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 4, 2020
 Back lit leaves of rough cocklebur (Xanthium strumarium) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 6, 2019
 Close up of staminate flowers of cocklebur (Xanthium strumarium) on a shore of Lake Somerville in Birch Creek Unit of Somerville Lake State Park. Texas, September 8, 2012
 Seeds of many-spiked sedge (Cyperus polystachyos) in Lick Creek Park. College Station, Texas, June 13, 2022
 Seeds of woodland lettuce (Lactuca floridana) in Lick Creek Park. College Station, Texas, June 22, 2022
 Seeds of bunchy sedge (Cyperus polystachyos) in Lick Creek Park. College Station, Texas, June 13, 2022
 Dry seeds of curly dock (Rumex crispus) in Lick Creek Park. College Station, Texas, June 22, 2022
 Fluffy seeds of cattails (typha) on a pipeline clearing in Lick Creek Park. College Station, Texas, June 22, 2022
 Hawkweed seeds in Lick Creek Park. College Station, Texas, October 10, 2022
 Horseweed(?) with seeds in Lick Creek Park. College Station, Texas, October 10, 2022
 Seeds of cattail (Typha) in Lick Creek Park. College Station, Texas, September 29, 2022
 Seeds of Illinois bundleflower (Desmanthus illinoensis) in Bee Creek Park. College Station, Texas, June 14, 2022
 Dry seeds of Illinois bundleflower (Desmanthus illinoensis) in Bee Creek Park. College Station, Texas, June 24, 2022
 Fluffy seeds of cattail (Typha) in Lick Creek Park. College Station, Texas, October 10, 2022
 Head of cattail (Typha) with fluffy seeds in Lick Creek Park. College Station, Texas, September 29, 2022
 Seeds of wand blackroot (Pterocaulon virgatum) in Lick Creek Park. College Station, Texas, October 3, 2022
 Fluffy seeds of silver bluestem grass (Bothriochloa laguroides)(?) in Bee Creek Park. College Station, Texas, June 24, 2022
 Seeds of soft golden aster (Bradburia pilosa) in Lick Creek Park. College Station, Texas, October 10, 2022
 Close-up of seeds of wand blackroot (Pterocaulon virgatum) in Lick Creek Park. College Station, Texas, September 29, 2022
 Fluffy seeds of wand blackroot (Pterocaulon virgatum) in Lick Creek Park. College Station, Texas, September 26, 2022
 Fluffy seeds of wand blackroot (Pterocaulon virgatum) in Lick Creek Park. College Station, Texas, September 29, 2022
 Seeds of rattlebush (Sesbania drummondii) with larvae of some bugs in Lick Creek Park. College Station, Texas, September 29, 2022
 Masses of fluffy seeds of wand blackroot (Pterocaulon virgatum) in Lick Creek Park. College Station, Texas, September 26, 2022
 Seeds of Wild Carrot (Daucus pusillus) in Lick Creek Park. College Station, June 14, 2008
 Dry seeds of wild carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, June 10, 2012
 Seeds of woolly croton (hogwort, Croton capitatus) in Lick Creek Park. College Station, Texas, October 10, 2022
 Seeds of white nymph (Trepocarpus aethusae) with a small green grasshopper in Lick Creek Park. College Station, June 15, 2008
 Seeds of soft golden aster (Bradburia pilosa, Heterotheca, Chrysopis) in Lick Creek Park. College Station, Texas, June 30, 2012
 Seeds of some plant of carrot family in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, June 21, 2022
 Spurge Euphorbia prostrata(?) in Lick Creek Park. College Station, Texas, June 17, 2022
 Cap of a mushroom Boletus luridellus in Lick Creek Park. College Station, Texas, June 3, 2022
 Curled leaves of beautyberry in Lick Creek Park. College Station, Texas, June 22, 2022
 Hop sedge (Carex lupulina) in Lick Creek Park. College Station, Texas, June 13, 2022
 Oxbow from a pipeline clearing in Lick Creek Park. College Station, Texas, June 27, 2022
 Ground cherries (Physalis) in Lick Creek Park. College Station, Texas, June 8, 2022
 Drying leaves of beautyberry in Lick Creek Park. College Station, Texas, June 17, 2022
 Dry seeds in Lick Creek Park. College Station, Texas, November 30, 2012
 Trees near a creek from a sewage line right of way in Lick Creek Park. College Station, Texas, June 27, 2022
 Alum Creek from a clearing over a pipeline in Lick Creek Park. College Station, Texas, June 17, 2022
 Slime mold Fuligo cinerea on a log in Lick Creek Park. College Station, Texas, June 17, 2022
 Cattails (typha) on a pipeline clearing in Lick Creek Park. College Station, Texas, June 22, 2022
 Woodland lettuce (Lactuca floridana) in Lick Creek Park. College Station, Texas, June 13, 2022
 Fragrant flatsedge (Cyperus odoratus) in Lick Creek Park. College Station, Texas, June 13, 2022
 Slime mold Fuligo cinerea in Lick Creek Park. College Station, Texas, June 17, 2022
 Roundhead rush (Juncus validus) in Lick Creek Park. College Station, Texas, June 13, 2022
 Common true katydid on a leaf in Lick Creek Park. College Station, Texas, June 8, 2022
 Many-spiked sedge (Cyperus polystachyos) in Lick Creek Park. College Station, Texas, June 13, 2022
 Close-up of hop sedge (Carex lupulina) in Lick Creek Park. College Station, Texas, June 13, 2022
 Underside of a mushroom Boletus luridellus in Lick Creek Park. College Station, Texas, June 3, 2022
 Bunchy sedge (Cyperus polystachyos) in Lick Creek Park. College Station, Texas, June 13, 2022
 Seeds of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
 Dry seeds of Lyreleaf sage in Lick Creek Park. College Station, Texas, May 4, 2011
 Hop sedge (Carex lupulina) on a clearing over a pipeline in Lick Creek Park. College Station, Texas, June 13, 2022
 Close-up of many-spiked sedge (Cyperus polystachyos) in Lick Creek Park. College Station, Texas, June 13, 2022
 Central area of spurge Euphorbia prostrata(?) in Lick Creek Park. College Station, Texas, June 17, 2022
 Cross section of Amanita canescens(?) mushroom in Lick Creek Park. College Station, Texas, June 8, 2022
 Split fibrecap mushroom (Pseudosperma rimosum) in Lick Creek Park. College Station, Texas, June 3, 2022
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