 Caterpillars on a picnic table fallen from a live oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Field of prairie parsley (Polytaenia texana), home of many black swallowtail caterpillars, in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Dark caterpillars in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Young web caterpillars on a Maclura tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Young leaves of gum Bumelia (Sideroxylon lanuginosum) eaten by some green caterpillars in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Small caterpillars in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Small caterpillars on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Masses of small web caterpillars on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Blooming black cherry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2022
 Leaf eating Fall Webworm caterpillars (Hyphantria cunea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Black berries of mustang grape in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 2, 2022
 Young Fall Webworm caterpillars (Hyphantria cunea) on boxelder (ashleaf maple) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Dried leaves of black cherry on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 22, 2022
 Dry flowers of black eyed susan (Rudbeckia hirta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Monarch caterpillars feeding on green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Black-eyes susan flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Black-eyed susan (Rudbeckia hirta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Insects on petals of black-eyed susan in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2012
 Stick caterpillar on black-eye susan flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Black Hysteroid pyrenomycetous fungi Hysterium angustatum(?) on an old dry osage orange (Maclura) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Asci and paraphyses of black Hysteroid pyrenomycetous fungus Hysterium angustatum(?) under a microscope in KOH, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Asci with spores of black Hysteroid pyrenomycetous fungus Hysterium angustatum(?) under a microscope in KOH, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Chanterelle mushrooms Cantharellus quercophilus in overgrown area with small cedar elm, juniper, live oak, among dry leaves in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 7, 2021
 Live oaks near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Asci and spores of black Hysteroid pyrenomycetous fungus Hysterium angustatum(?) from a dry maclura tree at low magnification, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Asci and paraphyses of black Hysteroid pyrenomycetous fungus Hysterium angustatum(?) from a dry maclura tree at low magnification, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Molting cicada on bark of a live oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
 Some plant of pear family under live oaks in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Wildflowers on a field in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fresh elm leaves in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 A rusty barn in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Agaricus mushrooms under several wild live oaks in prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Fresh leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Daisy fleabane (Erigeron) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Fox sedge (Carex vulpinoidea) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fresh leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Green milkweed together with flax in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Leaves of prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Bluebonnet (Lupinus) flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Pink phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Firewheel and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 White phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Young leaves of elderberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Cross section of Agaricus mushrooms under several wild live oaks in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 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
 Black Hysteroid pyrenomycetous fungi Hysterium angustatum(?) on an old dead osage orange (Maclura) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Yellow flowers of aster family in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Firewheel and bull nettle flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Canada garlic (Allium canadense) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Indian paintbrush and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Prairie parsley (Polytaenia texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Bluebonnet (Lupinus) and Indian paintbrush in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Young leaves of Virginia creeper in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Field of wildflowers near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Japanese honeysuckle (Lonicera japonica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Engelmann daisy and bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Various spring wildflowers behind Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Mushrooms Boletus luridellus on a lawn under live oaks near Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 4, 2021
 Cross section of mushrooms Boletus luridellus on a lawn under live oaks in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 4, 2021
 Mushrooms Boletus luridellus on a mowed grassy lawn under live oaks in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 4, 2021
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Spores of Agaricus mushroom with a scaly cap collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Yellow and red Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Red flowers of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Bluebonnet (Lupinus) near Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Baby blue eyes (Nemophila phacelioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Close-up of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Canada garlic (Allium canadense) with bulblets in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Blooming Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Dry pad skeleton of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Flowers of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Yellow Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Catkins and young leaves of oak near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Baby blue eyes (Nemophila phacelioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Scaly brown Agaricus mushroom in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Stiff-stem flax (Linum berlandieri) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 White prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Large shoot of bull nettle (Cnidoscolus texanus) in shade under live oaks in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Orange-colored Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Vegetative shoot of prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Flowers of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Flower of prickly poppy (Argemone albiflora) with a beetle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Flower head of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Field with bluebonnet (Lupinus) near Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Fibrecap mushroom Inocybe albodisca(?) collected on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Blooming white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Flower head of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
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