 Alligator weed (Alternanthera philoxeroides) near a pond in Central Park. College Station, Texas, July 30, 2014
 Flowers of Alligator weed (Alternanthera philoxeroides) near a pond in Central Park. College Station, Texas, July 30, 2014
 Alligator weed (Alternanthera philoxerpides) near a pond in Central Park. College Station, Texas, June 15, 2012
 Flower of Alligator weed (Alternanthera philoxerpides) near a pond in Central Park. College Station, Texas, June 15, 2012
 Alligator weed (Alternanthera philoxeroides) in Brazos County Park. Bryan, Texas, May 23, 2012
 Whitish, papery ball-shaped flower of Alligator weed (Alternanthera philoxeroides) in Brazos County Park. Bryan, Texas, May 23, 2012
 Smartweed (Polygonum) near a pond in Central Park. College Station, Texas, July 30, 2014
 Floating primrose-willow (Ludwigia peploides) near a pond in Central Park. College Station, Texas, July 8, 2014
 Yellow flower of floating primrose-willow (Ludwigia peploides) near a pond in Central Park. College Station, Texas, July 8, 2014
 Prostrate weed of khakiweed (washerwoman, mat chaff flower, Alternanthera caracasana) with prickly seeds taken from a lawn. College Station, Texas, November 23, 2010
 Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Mats of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Close up of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Carpet of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Close up of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Potato-weed (Solanum) in Lick Creek Park. College Station, Texas, July 26, 2014
 Khaki Burr weed (Alternanthera pungens) carpeting the ground on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Khaki Burr weed (Alternanthera pungens) growing among spurge on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Khaki Burr weed (Alternanthera pungens) growing among prostrate spurge on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Khaki Burr weed (Alternanthera pungens) and spurge Euphorbia prostrata on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Khaki Burr weed (Alternanthera pungens) growing on sandy road on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Spider eating a grasshopper in Central Park. College Station, Texas, July 8, 2014
 Shoot of Heartleaf peppervine (Ampelopsis cordata) in Central Park. College Station, Texas, July 30, 2014
 Aphids on a leaf of milkweed (Asclepias curassavica) in Central Park. College Station, Texas, July 8, 2014
 Soft golden aster (Bradburia pilosa, Chrysopis) in Central Park. College Station, Texas, July 8, 2014
 Back lit soft golden aster (Bradburia pilosa, Chrysopis) in Central Park. College Station, Texas, July 8, 2014
 Slender orange bush lichen (Teloschistes exilis) on a twig in Central Park. College Station, Texas, July 8, 2014
 Geese in a pond of Central Park. College Station, Texas, November 20, 2010
 Cypress in a pond of Central Park. College Station, Texas, November 13, 2011
 Bald cypress in a pond in Central Park. College Station, Texas, December 12, 2013
 Cypress trees and a pond in Central Park. College Station, Texas, November 20, 2010
 Cypress tree in a pond of Central Park. College Station, Texas, December 5, 2009
 Bald cypress in a pond of Central Park. College Station, Texas, November 13, 2011
 Christmas lights reflected in a pond of Central Park. College Station, Texas, December 17, 2008
 Bald cypress trees in Central Park pond. College Station, Texas, December 5, 2009
 Bald cypress trees in a fishing pond of Central Park. College Station, Texas, December 5, 2009
 Steamboat Christmas light decoration on a pond in Central Park. College Station, Texas, December 29, 2009
 Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
 Close up of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
 Spreading of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, August 21, 2015
 Carpet of Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
 Dense infestation by Khaki Burr weed (Alternanthera pungens) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
 Mock Bishop s Weed (Ptilimnium nuttali) in Lick Creek Park. College Station, Texas, May 20, 2014
 Fresh leaves of Khaki Burr weed (Alternanthera pungens) on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Flowers of Mock Bishop s Weed (Ptilimnium nuttali) in Lick Creek Park. College Station, Texas, May 20, 2014
 Potato-weed (solanum) in Lick Creek Park. College Station, Texas, July 7, 2012
 Rattlebush (Sesbania drummondii) in Central Park. College Station, Texas, August 4, 2014
 White flower of Potato-weed (solanum) in Lick Creek Park. College Station, Texas, July 24, 2013
 Close up of a flower of Potato-weed (solanum) in Lick Creek Park. College Station, Texas, July 7, 2012
 Showy evening primrose (Oenothera speciosa) in Central Park. College Station, Texas, August 4, 2014
 Alligator gar in drying pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Swarming insects on dead alligator gar in drying pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 23, 2011
 Copper lily (Habranthus texanus) on a lawn in Central Park. College Station, Texas, July 19, 2013
 Datura metel (Purple Horn-of-Plenty, Jimpson Weed, Devils Weed) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, October 25, 2008
 Cap of small pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) in Central Park. College Station, Texas, August 4, 2014
 Small pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) in Central Park. College Station, Texas, August 4, 2014
 Close up of small pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) in Central Park. College Station, Texas, August 4, 2014
 Pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) on a lawn in Central Park. College Station, Texas, July 19, 2013
 Central part of spider lily in Antique Rose Emporium. Independence, Texas, July 25, 2014
 Purple lambsquarter weed (lamb s quarters, pigweed, Chenopodium giganteum) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 12, 2008
 Central part of coneflower (Echinacea purpurea) in Antique Rose Emporium. Independence, Texas, July 25, 2014
 Potato-weed (solanum) in Lick Creek Park. College Station, Texas, May 19, 2010
 Potato-weed (solanum) in Lick Creek Park. College Station, Texas, May 15, 2009
 Hairy bittercress weed (Cardamine hirsuta) on a sandy path below a sewage station in Lick Creek Park. College Station, Texas, January 20, 2020
 Mock Bishop s Weed on cutting near the park fence in Lick Creek Park. College Station, Texas, May 7, 2012
 Leaves of hairy bittercress weed (Cardamine hirsuta) on a sandy path below a sewage station in Lick Creek Park. College Station, Texas, January 20, 2020
 Alligator s habitat in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Potato-weed (solanum) in Lick Creek Park. College Station, Texas, September 12, 2008
 Squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Leaves of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, February 26, 2024
 Mock Bishop s Weed (Ptilimnium nuttali) in Lick Creek Park. College Station, Texas, May 4, 2020
 Mock bishop s weed (Ptilimnium nuttallii) in Lick Creek Park. College Station, Texas, May 11, 2020
 Pond in Sosnovka Park, with Central Institute of Robotics and Technical Cybernetics (TsNII RTK) in background. Saint Petersburg. Russia, September 9, 2007
 Black eyed susan and mock bishop s weed in Lick Creek Park. College Station, Texas, May 11, 2020
 Squaw-weed flowers (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Black-eyed susan and Mock Bishop s Weed in Lick Creek Park. College Station, Texas, May 7, 2012
 Flower buds of squaw-weed (Senecio ampullaceus) in Lick Creek Park. College Station, Texas, March 20, 2023
 Black-eyed susan, Mock Bishop s Weed, and plantain in Lick Creek Park. College Station, Texas, May 7, 2012
 Black-eyed susan and Mock Bishop s Weed flowers in Lick Creek Park. College Station, Texas, May 7, 2012
 Black eyed susan and mock bishop s weed in Lick Creek Park. College Station, Texas, June 6, 2012
 Cutleaf groundsel (butterweed, squaw weed, Senecio) in Lick Creek Park. College Station, Texas, April 16, 2009
 Fruits of Horse Nettle (Potato-weed, Solanum) in Lick Creek Park. College Station, Texas, September 16, 2012
 Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024
 Parasol inflorescense of Mock Bishop s Weed (Ptilimnium nuttali) in Lick Creek Park. College Station, Texas, May 4, 2020
 White berries on a desert bush Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, February 13, 2010
 A trail in Central Park. College Station, Texas, September 14, 2011
 Dry vegetation in Central Park. College Station, Texas, September 14, 2011
 Western horse nettle (Potato-weed, Solanum dimidiatum) in Lick Creek Park. College Station, June 15, 2008
 Flower buds of squaw-weed (Senecio ampullaceus) in Anderson Arboretum in Bee Creek Park. College Station, March 7, 2024
 Parasol flower head of false bishop s weed (Ammi majus) in Lick Creek Park. College Station, Texas, May 17, 2018
 Black-eyed susan and Mock Bishop s Weed near Post Oak Trail in Lick Creek Park. College Station, Texas, May 18, 2012
 Black-eyed susan, Mock Bishop s Weed, and Curly Dock in Lick Creek Park. College Station, Texas, May 7, 2012
 Frost-weed (Verbesina virginica) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, September 12, 2008
 White flowers of hairy bittercress weed (Cardamine hirsuta) in Lick Creek Park. College Station, Texas, January 20, 2020
 Central (Constantin) Rozovopavilionny Pond in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 12, 2021
 Central (Konstantin) Rozovopavilionny Pond in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 26, 2016
 Central (Konstantinovsky) Rozovopavilionny Pond in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, October 14, 2016
 Greenery on Park Hudson Trail. College Station, Texas, July 4, 2014
 Dock (Rumex) in Lemontree Park. College Station, Texas, July 27, 2014
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