 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Shoot of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Shoots of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 27, 2019
 Young leaves of eastern poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Dry seeds of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022
 Dry plant of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023
 Reddish young leaves of poison ivy (Toxicodendron radicans) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 31, 2021
 Back lit leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Young leaf of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Back-lit leaf of mustang grape in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 31, 2010.
 Back lit shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, March 19, 2020
 Some back lit leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Back lit acacia leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 9, 2012
 Tender leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
 Tender young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Shoot of poison ivy on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Tender pink leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Young leaves of poison ivy on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, April 19, 2020
 Back lit spotted beebalm (Monarda punctata(?)) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Leaves of eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, April 19, 2020
 Blooming eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, April 19, 2020
 Back lit shoot of cedar elm in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
 Eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, March 24, 2019
 Back lit shoot of snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Back lit flower of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Green leaves of eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, April 19, 2020
 Back lit leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Back-lit scarlet pimpernel (Anagallis arvensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 31, 2010.
 Nymphs of leaf-footed bug (Leptoglossus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Eastern poison ivy (Toxicodendron radicans) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Young leaf of Virginia creeper in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Blackberry in poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 5, 2022
 Poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 23, 2012
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Leaf of maypop (Passiflora foetida) with a Gulf fritillary caterpillar in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
 Rain drop on a leaf of bluebonnet (lupine) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Green berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Dying poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 6, 2011
 Reddish shoot of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Fresh leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fall colors of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Young leaves of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Shoot of rough-leaf dogwood (Cornus drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Leaves of rough-leaf dogwood (Cornus drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Green berries of poison ivy on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Early fall color of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 30, 2008
 Young plants of eastern poison ivy (Toxicodendron radicans) on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, March 23, 2019
 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
 Young folded leaf of bull nettle (Cnidoscolus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Leaf footed bug on a leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Young tender leaves of rough-leaf dogwood (Cornus drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Back lit flower of buttercup in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 27, 2012
 Back lit phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2023
 Shoot of elm in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 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
 Pink phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Burrow of a nest of Texas leaf cutting ants (Atta texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 Blooming bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Red sage (Salvia coccinea(?)) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Corn salad (Valerianella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Flowers of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Field of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 White flowers of dewberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Indian paintbrush (Castilleja indivisa) with oval bright-reddish pink flower leaf bracts in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, March 22, 2008
 Back lit showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Back lit flower of Morning Glory (Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Back lit violet ruella (Ruellia nudiflora) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Back lit yellow Water-weed (Ludwigia peploides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Dry leaf near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Bug nymph on a leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
 Japanese honeysuckle (Lonicera japonica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Thorny winter rosette of a thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Stemless spiderwort (Tradescantia subacaulis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Blue flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 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
 Insect eggs on a leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Young leaf of raspberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
 Decaying brown dry leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 10, 2011
 Leaf cutter ants in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Leaf cutter ant highway in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 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
 Orange Caloplaca lichen on a sandstone rock in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Rush (Juncus) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
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