 Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Seedling of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Wilted giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Blooming giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Dry plant of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Flower buds of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Green flowers with pollen of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Purple bindweed (Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Shoot of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Shoot of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Wilted giant ragweed (Ambrosia trifida) after application of a herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Curled leaves of giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Distorted growth of giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Giant ragweed (Ambrosia trifida) after application of herbicide that is causing it to wilt and shrivel in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 7, 2008
 Giant ragweed with curled leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Blooming morning glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Flower of morning glory (Purple Bindweed, Ipomoea cordatotriloba) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Flower of purple bindweed (Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
 Blooming morning Glory (Purple Bindweed, Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Giant ragweed in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 9, 2012
 Grasshopper sleeping on ragweed in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 6, 2012
 Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 18, 2010
 Flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Blooming purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Flower of purple gerardia (false foxglove, Agalinis purpurea) with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Close up of a flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Damselfly on a flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Closed flowers of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Opening flower of purple gerardia (false foxglove, Agalinis purpurea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Goldenrod (Solidago) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Johnson grass (Sorghum halepense) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Caps of mushrooms Chlorophyllum hortense on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Fieldcap mushrooms Agrocybe retigera on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Mushrooms Chlorophyllum hortense on a lawn near a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Gills of mushrooms Chlorophyllum hortense on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Blackfoot parachute mushrooms (Tetrapyrgos nigripes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Rain lily (Cooperia drummondii) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Sideoats Grama grass (Bouteloua curtipendula)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Lactocollybia mushrooms on bark of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Splitgill mushrooms (Schizophyllum commune) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Close-up of splitgill mushrooms (Schizophyllum commune) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Mushrooms Xeromphalina tenuipes on rotting oak wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Blooming Johnson grass (Sorghum halepense) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Common Gymnopus mushrooms on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Lactocollybia mushrooms at the base of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Close-up of Lactocollybia mushrooms at the base of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Gills of Lactocollybia mushrooms at the base of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Young polypore mushrooms Lentinus tricholoma on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Close-up of frothy porecrust fungus (Oxyporus latemarginatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 King ranch bluestem grass (Bothriochloa ischaemum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Thin wide Trametes(?) polypore mushrooms on wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Caps of Trametes(?) polypore mushrooms under oaks and red cedar in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Underside of Trametes(?) polypore mushroom under oaks and red cedar in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Small mushrooms Marasmius graminum among dry grass on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Spores of thin wide Trametes(?) mushrooms collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Mushrooms Crepidotus subfulviceps(?) among dry grass on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Caps of mushrooms Crepidotus subfulviceps(?) on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Purple alyssum like flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Frothy porecrust fungus (Oxyporus latemarginatus) on a root of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Frothy porecrust fungus (Oxyporus latemarginatus) at the base of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Underside of young polypore mushrooms Lentinus tricholoma on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Cluster of common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Puffball mushrooms Calvatia cyathiformis on open space near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of blackfoot parachute mushrooms (Tetrapyrgos nigripes) collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of common brown grass Gymnopus mushrooms, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of polypore mushrooms Lentinus tricholoma from a lawn, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spikes of king ranch bluestem grass (Bothriochloa ischaemum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
 Cream white resupinate polypore mushroom on a dry bush of huisache in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Mature fieldcap mushrooms Agrocybe retigera on a grassy lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Alyssum like purple flowers and fruits in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Purple thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Spores of common brown grass Gymnopus mushrooms under a microscope, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of small grass mushrooms Marasmius graminum from a lawn, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Close-up of cream white resupinate polypore mushroom on a dry bush of huisache in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of mushrooms Chlorophyllum hortense from edge of grassy meadow, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of Lactocollybia mushrooms from the base of an osage orange tree, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Tiny orange mushrooms Marasmius curreyi on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Side view of young polypore mushrooms Lentinus tricholoma on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Giraffe spots fungus (Peniophora albobadia) on a fallen tree branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Spores of tiny brown Clitocybe mushrooms from bare soil, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Tiny orange mushrooms Marasmius curreyi among dry grass on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Frosty funnel mushrooms (Leucocybe candicans) on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Brown caps of common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Buckeye caterpillar on purple gerardia(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Purple winter rosette of sow thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Purple Alyssum like flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Purple leaves of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
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