 Flower of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Cut-leaved evening primrose flower (Oenothera laciniata) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
 Cut-leaved evening primrose flower (Oenothera laciniata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
 Back lit flower of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Tiny yellow flower of Melonette (Melothria pendula) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Large flower of showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 White flower of showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Flower of showy evening primrose (Oenothera speciosa) with holes from insects on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Showy evening primrose in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Showy evening primrose in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Showy evening primrose in dew at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Showy evening primrose in morning dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Greenish-yellow, bell-shaped flower of persimmon (Diospyros virginiana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Showy evening primrose (Oenothera speciosa) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Cut-leaved evening primrose (Oenothera laciniata) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Showy evening primrose downed by heavy dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Cut-leaved evening primrose (Oenothera laciniata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Cut-leaved evening primrose (Oenothera laciniata) in sew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Back lit showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Flowers of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Close-up of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Blooming showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Showy evening primrose in morning dew near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Blooming showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Flowers of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Yellow pea like flowers of rattlebush (Sesbania drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Winter rosette of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 White phenotype of showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 24, 2022
 Winter rosette of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022
 Winter rosette of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Winter rosette of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 7, 2024
 Winter rosette of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Rosette of basal leaves of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Blooming showy evening primrose (Oenothera speciosa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Stemless evening primrose (Oenothera triloba) with other plant on gravel of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Yellow color variant of Mexican hat flower (Ratibida columnifera) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Bee on pink powderpuff flower (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Winter rosette of stemless evening primrose (Oenothera triloba) on gravel of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Close-up of a winter rosette of basal leaves of stemless evening primrose (Oenothera triloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Winter rosette of stemless evening primrose (Oenothera triloba) on sand of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 8, 2021
 Close-up of winter rosette of stemless evening primrose (Oenothera triloba) on gravel of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Rosettes of basal leaves of stemless evening primrose (Oenothera triloba) on gravel of Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 11, 2023
 Spores of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) from a dry huisache, collected a day before in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 4, 2023
 Tiny yellow oysterling mushrooms Crepidotus praecipuus(?) in crevices of a dry standing huisache (Acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Tiny flowers of Small bluets (Star-violet, Hedyotis crassifolia) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 15, 2009
 Close-up of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) on rotting wood of huisache (Acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Gills of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) in crevices of a dry standing huisache (Acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Underside of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) in crevices of a dry standing huisache (Acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Yellow Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
 Yellow lemon paintbrush flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
 Magnolia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Flower of thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Yellow flower of sow thistle (Sonchus oleraceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022
 White magnolia flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Dry flower spike of plantain in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Thistle flower (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Mexican hat flower (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Buttercup flower near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 8, 2009
 White flower of prickly poppy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Flower of an apple-like tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 15, 2009
 Yellow flower of Engelmann s daisy (Engelmannia peristenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Puncturevine (Caltrop, Tribulus terrestris) with a yellow flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Yellow flower of Engelmann s daisy (Engelmannia peristenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Yellow flower of Engelmann s daisy (Engelmannia peristenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
 Yellow flower of false dandelion (Pyrrhopappus carolinianus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 12, 2018
 Basidia and spores of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) from crevices of a dry standing huisache (Acacia) tree, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Hyphae (in Congo Red) of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) from crevices of a dry standing huisache (Acacia) tree, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Tissues (at low magnification) of tiny yellow oysterling mushrooms Crepidotus praecipuus(?) from crevices of a dry standing huisache (Acacia) tree, collected in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Pink spiderwort (tradescantia) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2009
 Grasshopper on a white prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Yellow and white flower of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Yellow Linum berlandieri (stiff-stem Flax) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Cylindrical part of a flower of Mexican hat (Ratibida columnifera) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Stamens of a pink spiderwort (tradescantia) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2009
 Opening flower of black-eyed susan (Rudbeckia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Opening flower of black-eyed susan (Rudbeckia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
 Crab spider on a white flower of bull nettle in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2009
 Blister beetle (Meloidae) in genus Nemognatha on thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Berries of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Robber Fly (Laphria) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 1, 2009
 Opening flower of white prickly poppy (pricklepoppy, Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Close up of a green grasshopper sitting on a white prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Powderpuff (Mimosa strigillosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 23, 2009
 Yellow Water-weed (Ludwigia peploides) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Back lit yellow Water-weed (Ludwigia peploides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Copper lily (Habranthus texanus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Green lynx spider eating a bee in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 14, 2009
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