 Sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, September 20, 2020
 Sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, September 16, 2012
 Sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, September 22, 2021
 Sumpweed (Iva annua) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 24, 2012
 Sumpweed (Iva annua) and Morning glory (Ipomoea cordatotriloba) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 24, 2012
 Sumpweed (Iva annua) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Shoot of sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, August 12, 2021
 Shoot of sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, July 18, 2020
 Leaves of sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, August 4, 2021
 Shoot of sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, August 4, 2021
 Sumpweed (Iva annua) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 23, 2020
 Sumpweed (Iva annua) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 28, 2020
 Pollinating bush of sumpweed (Iva annua) in Lick Creek Park. College Station, Texas, October 11, 2012
 Fresh leaves of sumpweed (Iva annua) on a recent sewage line right of way in Lick Creek Park. College Station, Texas, July 22, 2020
 Sumpweed (Iva annua) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Wolf Pen Creek Park. College Station, Texas, September 4, 2024
 Dodder (Cuscuta) on sumpweed (Iva annua) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Agaricus mushrooms under sumpweed on sewage line right-of-way in Lick Creek Park. College Station, Texas, September 12, 2022
 Green flowers of sumpweed (Iva annua) near utility lake in Lake Bryan Park. Bryan, Texas, September 30, 2013
 Pollinating flowers of sumpweed (Iva annua) near utility lake in Lake Bryan Park. Bryan, Texas, September 30, 2013
 Close up of sumpweed (Iva annua) near utility lake in Lake Bryan Park. Bryan, Texas, September 30, 2013
 Spike of sumpweed (Iva annua) near utility lake in Lake Bryan Park. Bryan, Texas, September 30, 2013
 Sumpweed (Iva annua) near utility lake in Lake Bryan Park. Bryan, Texas, September 30, 2013
 Dry sedge-like plant with seeds in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry seeds of some sedge-like plant in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry plant of goldenrod (Solidago) in Lick Creek Park. College Station, Texas, September 13, 2023
 Dry plant of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 13, 2023
 Spores of Agaricus mushrooms under sumpweed on sewage line right-of-way, in KOH (spore print dark brown) collected in Lick Creek Park. College Station, Texas, September 12, 2022
 Dry plant of Brazilian vervain (Verbena brasiliensis) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry plant of lemon beebalm (Monarda citriodora) in Lick Creek Park. College Station, Texas, September 13, 2023
 Sumpweed (Iva annua) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 6, 2020
 Sumpweed (Iva annua) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, October 31, 2020
 Shoot of sumpweed (Iva annua) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Dodder (Cuscuta) on sumpweed (Iva annua) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Fluffy seed head of a dry plant of soft golden aster (Bradburia pilosa) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry sumpweed (Iva annua) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Shoots of a parasol like plant in Lick Creek Park. College Station, Texas, March 16, 2023
 Distorted leaves of some plant shoot in Lick Creek Park. College Station, Texas, April 17, 2023
 Shoot of some plant on sewage line right-of-way in Lick Creek Park. College Station, Texas, April 17, 2023
 Rosette of a plant of aster family in Lick Creek Park. College Station, Texas, February 27, 2023
 Shoot of some plant of carrot family in Lick Creek Park. College Station, Texas, February 27, 2023
 Rosette of leaves of a plant of sunflower family in Lick Creek Park. College Station, Texas, March 2, 2023
 Oaks and prairie near sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Flowers near Deer Run Trail behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Various flowers near Deer Run Trail behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Blooming yucca in prairie near sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Young hairy leaves of a plant of carrot family in Lick Creek Park. College Station, Texas, February 27, 2023
 Young plant of redseed plantain (Plantago rhodosperma(?)) in Lick Creek Park. College Station, Texas, February 27, 2023
 Seed heads of a plant with narrow leaves of aster family in Lick Creek Park. College Station, Texas, April 17, 2023
 Flowers of umbellifer plant Tansy dogshade (Limnosciadium pinnatum, Apiaceae) in Lick Creek Park. College Station, Texas, May 2, 2023
 Seed head of a plant of aster family in Lick Creek Park. College Station, Texas, September 29, 2022
 Plants of prairie dogshade (Limnosciadium pumilum) in a shallow depression near a road behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Growth of umbellifer plants Tansy dogshade (Limnosciadium pinnatum, Apiaceae) in wet area behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Umbellifer plants Tansy dogshade (Limnosciadium pinnatum, Apiaceae) in standing water behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Sewage line right of way near water treatment plant at morning in mist, in Lick Creek Park. College Station, Texas, September 16, 2007
 Dry seeds of flatsedge (Cyperus) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry leaves of black cherry(?) in Lick Creek Park. College Station, Texas, September 13, 2023
 Cocklebur (Xanthium strumarium) in Lick Creek Park. College Station, Texas, September 13, 2023
 Tiny seed heads of umbellifer plants Tansy dogshade (Limnosciadium pinnatum, Apiaceae), collected from wet area behind sewage treatment plant in Lick Creek Park. College Station, Texas, July 29, 2023
 Dry leaves of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry shoot of beautyberry (Callicarpa americana) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry plants of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 8, 2023
 White vervain (Verbena urticifolia) in Lick Creek Park. College Station, Texas, September 13, 2023
 Close-up of tiny seed heads of umbellifer plants Tansy dogshade (Limnosciadium pinnatum, Apiaceae), collected from wet area behind sewage treatment plant in Lick Creek Park. College Station, Texas, July 29, 2023
 Slender spikes of little bluestem (Schizachyrium scoparium) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry seeds of hedge parsley (Torilis arvensis) in Lick Creek Park. College Station, Texas, September 8, 2023
 Drying bush of beautyberry (Callicarpa americana) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry seeds of Canada wild rye (Elymus canadensis)(?) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry leaves and berries of beautyberry (Callicarpa americana) in Lick Creek Park. College Station, Texas, September 8, 2023
 Drying shoot of beautyberry (Callicarpa americana) in Lick Creek Park. College Station, Texas, September 8, 2023
 Seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) near a water treatment plant in Lick Creek Park. College Station, Texas, February 13, 2024
 Blooming late-flowering boneset (Eupatorium serotinum) in Lick Creek Park. College Station, Texas, September 13, 2023
 Dry spikes of grass longleaf woodoats (Chasmanthium sessiliflorum) in Lick Creek Park. College Station, Texas, September 8, 2023
 Fluffy seeds of Western ironweed (Vernonia baldwini) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dry leaves and blackened berries of beautyberry (Callicarpa americana) in Lick Creek Park. College Station, Texas, September 8, 2023
 Seeds of rattle-box water primrose (Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 8, 2023
 Blooming salt-marsh fleabane (Pluchea odorata) in Lick Creek Park. College Station, Texas, September 13, 2023
 Purple gerardia (false foxglove, Agalinis purpurea) in Lick Creek Park. College Station, Texas, September 13, 2023
 Flower of sundew Drosera brevifolia (D. annua) in Big Thicket park on Pitcher Plant Trail. Texas, March 23, 2008
 Flower buds of salt-marsh fleabane (Pluchea odorata) in Lick Creek Park. College Station, Texas, September 13, 2023
 Dry seed capsules of rattle-box water primrose (Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 8, 2023
 Dried grass of longleaf woodoats (Chasmanthium sessiliflorum) with seeds in Lick Creek Park. College Station, Texas, September 8, 2023
 Drying leaves of beautyberry (Callicarpa americana) on Post Oak Trail in Lick Creek Park. College Station, Texas, September 8, 2023
 Seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on Raccoon Run Trail west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
 Seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on Raccoon Run Trail west from a water treatment plant in Lick Creek Park. College Station, Texas, February 19, 2024
 White flower buds of salt-marsh fleabane (Pluchea odorata) in Lick Creek Park. College Station, Texas, September 13, 2023
 Dry flowers of black eyed susan (Rudbeckia hirta) on Post Oak Trail in Lick Creek Park. College Station, Texas, September 8, 2023
 Fluffy seed heads of soft golden aster (Bradburia pilosa) in Lick Creek Park. College Station, Texas, September 8, 2023
 Chloroplasts in a leaf of a seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) west from a water treatment plant, collected in Lick Creek Park. College Station, Texas, January 29, 2024
 Dry seed heads of globe flat sedge (Cyperus echinatus) on Post Oak Trail in Lick Creek Park. College Station, Texas, September 8, 2023
 Seed heads of rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 13, 2023
 Close-up of seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on a road over a sewage pipeline west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
 Cluster of seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on a road over a sewage pipeline west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
 Chloroplasts (at low magnification) in a leaf of a seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) west from a water treatment plant, collected in Lick Creek Park. College Station, Texas, January 29, 2024
 Stomata in epidermis of a leaf of a seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) west from a water treatment plant, collected in Lick Creek Park. College Station, Texas, January 29, 2024
 Woolly croton (hogwort, Croton capitatus) in Lick Creek Park. College Station, Texas, September 13, 2023
 Tight accumulations of seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on a road over a sewage pipeline west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
 Compact cluster of seedlings of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) on a road over a sewage pipeline west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
 Seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) collected and deposited by rainwater on Raccoon Run Trail west from a water treatment plant in Lick Creek Park. College Station, Texas, January 18, 2024
 Dry hairy leaves of multi-bloom tephrosia (Tephrosia onobrychoides) on Post Oak Trail in Lick Creek Park. College Station, Texas, September 8, 2023
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