 Leaf cutter ants on sand near their nest in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Sand burrow of harvester ants on a road in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Elm catkins collected by ants under a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Entrance hole of a large sand mound of red harvester ants (Pogonomyrmex barbatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Close up of elm catkins collected by ants under a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Fire ants mound in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Nest of Texas leaf cutting ants (Atta texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Highway of Texas leaf cutting ants (Atta texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Burrow of a nest of Texas leaf cutting ants (Atta texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Leaf cutter ants in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Texas leaf cutting ants (Atta texana) carrying leaves of Yaupon holly in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Close-up of Texas leaf cutting ants (Atta texana) with leaves of Yaupon holly in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Texas leaf cutting ants (Atta texana) with leaves and berries of Yaupon holly in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Seedling of bluebonnet (Lupinus) in sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Accumulation of ants on a gravel path in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Burrow of leaf cutter ants with fragments of grass around in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Leaf cutter ants carrying fragments of grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Blooming sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Nest of leaf cutter ants carrying fragments of grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Entrance hole of a large mound of red harvester ants (Pogonomyrmex barbatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Leaf cutter ants on sandy soil carrying fragments of grass in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Brittle cinder fungus (Kretzschmaria deusta) on tree roots in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Greenish resupinate polypore mushroom on a dry willow like tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 7, 2024
 Dry tree in a field in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 25, 2018
 Blooming oak tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Shoots of elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Close-up of greenish resupinate polypore mushroom on a dry willow like tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 7, 2024
 Bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Mushrooms Mycena corticola on a tree bark in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Flower of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Young leaves on a pecan tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Young tender leaves on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Redbud tree (Cercis canadensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 11, 2018
 Shoot of poison ivy on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Hairy leaves of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Gills of Psathyrella mushroom and cap of Pluteus in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Rosette of leaves of thistle (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Toad flax (Linaria texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Tansy mustard (Descurainia pinnata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 False dandelion (Pyrrhopappus carolinianus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Leaves of woolly-white (Hymenopappus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Blooming redbud tree (Cercis canadensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Blooming redbud tree (Cercis canadensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 11, 2018
 Masses of redbud flowers on a tree branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Young leaves of poison ivy on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Brown colors of a recently dried Eastern red cedar tree (Juniperus virginiana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 Prickleseed buttercup flowers (Ranunculus muricatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Goldenhaired inkcap mushroom (Parasola auricoma) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 Flower buds of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Fresh leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Heartleaf nettle (ortiguilla, Urtica chamaedryoides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Reddish shoot of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Pink flowers of redbud tree (Cercis canadensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Texture of a pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Seed head of common dandelion (Taraxanum officinale) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Young plant of woodland lettuce (Lactuca floridana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Reddish young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Texture of fresh leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Blue spiderwort (Tradescantia) flowers and hairy leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Flower buds of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Leaves of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Blue flowers of toad flax (Linaria texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Shoot of Virginia creeper vine on a tree, with patches of various lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Shoot of squaw-weed (Senecio ampullaceus) with flower buds in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Small Pluteus mushroom (to the left) and brittlegill (Psathyrella) (to the right) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Underside of a small Pluteus mushroom (to the left) and cap of brittlegill (Psathyrella) (to the right) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Shoot of Virginia creeper vine on a tree covered by bark lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Field of bluebonnets and paintbrush flowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets and paintbrush flowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Blooming eastern swamp privet (Forestiera acuminata var. vestita) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Shoots of giant mustard (bastard cabbage, Rapistrum rugosum)(?) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Blue and white, snapdragon like flowers of branched broomrape (Orobanche ramosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 Spores (spore print pink) of a small Pluteus mushroom from a lawn, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Spores (spore print black) of a larger Psathyrella mushroom from a lawn, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Flowers of sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Flowers sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Blooming sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Antlion larvae sand pit traps in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2011
 Leaves of bluebonnet (Lupinus) on sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Old pecan tree near Brazos River in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Antlion (doodlebug) funnel pits in sand in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Flowers of blue phacelia (Phacelia patuliflora)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Flowers of red buckeye (Southern buckeye, Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2024
 Some rosette of basal leaves on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Prostrate spurge (Euphorbia) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Fourleaf allseed (Polycarpon tetraphyllum) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Khakiweed (Alternanthera caracasana) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
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