 Common sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 Fruits of common sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Common sandbur (Cenchrus spinifex) near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Coastal sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
 Coastal sandbur (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
 Sandburs spikelet (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Common sandbur grass (Cenchrus spinifex) in Old Baylor Park. Independence, Texas, September 3, 2020
 Common witchgrass (Panicum capillare)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Common red corn poppy (Papaver rhoeas) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common button lichen (Buellia stillingiana) on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Common Button Lichen (Buellia stillingiana) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Flower of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common red corn poppy (Papaver rhoeas) in bloom on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Close-up of a flower of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common red corn poppy (Papaver rhoeas) with black spots on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common fieldcap mushrooms (Agrocybe pediades) in prairie on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Upper view of common red corn poppy (Papaver rhoeas) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Common button lichen (Buellia stillingiana) (black) together with Lecanora on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Gills of common fieldcap mushrooms (Agrocybe pediades) in prairie on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Underside of common fieldcap mushrooms (Agrocybe pediades) in prairie on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Orange lantana flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Immature magnolia cone in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Blooming rustweed (Polypremum procumbens) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Molting cicada on bark of a live oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Flowers of rattlebush (Sesbania drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Shoot of Amaranth in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Some common grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Green carpetweed (Mollugo verticillata) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Shoot of some creeper on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Green and white spurge (Euphorbia heterophylla) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Common prairie grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Flowers of foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Flower buds of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Emerging flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Spike of foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Frog fruit (Phyla incisa, Lippia) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Narrow spikes of silver bluestem (Bothriochloa laguroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Blooming johnsongrass (Sorghum halepense) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Prairie tea (Croton monanthogynus) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Powderpuff (Mimosa strigillosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Small dayflower (Commelina) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Blooming rattlebush (Sesbania drummondii) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Cockleshell mushrooms Lentinellus castoreus on an oak log in red cedar forest Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
 Common dandelion and bluets on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Flower of a common prairie grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 8, 2012
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Hornbeam copperleaf (Acalypha ostryifolia) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Snow-on-the-prairie (Euphorbia bicolor) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Molting cicada with fresh green wings on bark of a live oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 White and green leaves of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Bahia grass (Paspalum notatum) with black anthers on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Common Gymnopus mushrooms on the edge of a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Flower of common sunflower (Helianthus annuus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common Buckeye butterfly (Junonia coenia) on beebalm in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 19, 2012
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Green and white spurge (Euphorbia heterophylla) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Shoots of Snow-on-the-prairie (Euphorbia bicolor) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Black velvet leatherleaf slug Belocaulus angustipes on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Flowers of hornbeam copperleaf (Acalypha ostryifolia) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Snow-on-the-prairie (Euphorbia bicolor) with flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Common button lichen (Buellia stillingiana) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Seed head of common dandelion (Taraxanum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Seed head of common dandelion (Taraxacum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Common Gymnopus mushrooms on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Tan stripe under black velvet leatherleaf slug Belocaulus angustipes on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Fluffy seed head common dandelion (Taraxacum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Spores of common brown grass Gymnopus mushrooms, collected 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
 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
 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 common brown grass Gymnopus mushrooms (stacked image), collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Line drawing on etched glass panel of Window on the Past interpretive sign on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Purpletop tridens grass (greasegrass, Tridens flavus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Close-up of a dark violet cap of young common Gymnopus mushroom on a side of a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Shaggy portulaca (rose purslane, Portulaca pilosa) on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Old pecan tree near Brazos River in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Old trees near Brazos River in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Bracket polypore mushroom Fomitiporia texana (Fomitiporia robusta) taken from a fry red cedar tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Spores of young common Gymnopus mushrooms with dark violet caps on a side of a sandy path, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2022
 Flower of shaggy portulaca (rose purslane, Portulaca pilosa) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Shoot of elm in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Creeping Euphorbia in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Agaricus mushrooms in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2020
 Firewheel (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Dry vegetation near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
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