 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 9, 2021
 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Flower of water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Water-primrose (Ludwigia, Onagraceae) in Lick Creek Park. College Station, Texas, August 12, 2021
 Flower of water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Leaves of water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Nymph of katidid on water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Narrow-leaf water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, August 4, 2021
 Virescent green metallic bee on water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 1, 2021
 Blooming narrow-leaf water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, August 4, 2021
 Blooming rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, July 28, 2021
 Yellow flower of rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, July 28, 2021
 Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) feeding on water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
 Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) with a leaf of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
 Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) eating a leaf of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
 Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) munching a leaf of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
 Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) with flower buds of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
 Shoots of water-primrose (Ludwigia octovalvis)(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 29, 2021
 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, September 12, 2008
 Water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 10, 2014
 Water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 1, 2014
 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 15, 2014
 Water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 7, 2012
 Shoot of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, March 2, 2023
 Flower of water primrose (Ludwigia) in Lick Creek Park. College Station, Texas, July 15, 2014
 Shoot of water-primrose (Ludwigia) from Lick Creek Park. College Station, Texas, August 8, 2023
 Green shoots of water-primrose (Ludwigia) on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, July 21, 2019
 Glossy leaves of water-primrose (Ludwigia) from Lick Creek Park. College Station, Texas, August 8, 2023
 Young leaves of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, March 2, 2023
 Shrubby water-primrose (Ludwigia octovalvis) in dew in Lick Creek Park. College Station, Texas, July 21, 2019
 Back lit leaves of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, March 2, 2023
 Shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, June 30, 2012
 Flower of shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, June 15, 2008
 Sepals of shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, June 15, 2008
 Narrow-leaf water-primrose (Ludwigia octovalvis) with dew in Lick Creek Park. College Station, June 15, 2008
 Flower of shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, June 30, 2012
 Seeds of rattle-box water primrose (Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 8, 2023
 Sepals of shrubby water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, June 30, 2012
 Hardy swamp lily (Crinum bulbispermum) in frequently flooded area near the creek in Bee Creek Park. College Station, Texas, April 2, 2021
 Rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, June 3, 2018
 Dry seed capsules of rattle-box water primrose (Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 8, 2023
 Flowers of rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, June 3, 2018
 Shrubby (narrow-leaf) water-primrose (Ludwigia octovalvis) flower in Lick Creek Park. College Station, Texas, June 8, 2008
 Hornworm of Lesser Vine Sphinx Moth (Banded Sphinx Moth, Eumorpha fasciatus) on water-primrose (Ludwigia, Onagraceae) in Lick Creek Park. College Station, Texas, August 12, 2021
 Seed heads of rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, September 13, 2023
 Water primrose (Ludwigia) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Yellow flower of rattle-box water primrose (bushy seedbox, Ludwigia alternifolia) in Lick Creek Park. College Station, Texas, June 3, 2018
 Water primrose (Ludwigia) with flower buds both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
 Hornworm caterpillar of Lesser Vine Sphinx Moth (Banded Sphinx Moth, Eumorpha fasciatus) on water-primrose (Ludwigia, Onagraceae) in Lick Creek Park. College Station, Texas, August 26, 2021
 Back segment with prolegs of hornworm of Lesser Vine Sphinx Moth (Banded Sphinx Moth, Eumorpha fasciatus) on water-primrose (Ludwigia, Onagraceae) in Lick Creek Park. College Station, Texas, August 12, 2021
 Water primrose (Ludwigia) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Greenway Trail. College Station, Texas, October 18, 2024
 Bony beard lichen (Usnea trichodea) on an elm tree in frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Bristled Parachute mushrooms (Marasmius cohaerens) in frequently flooded area slightly above a creek bottom on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Habitat of Bristled Parachute mushrooms (Marasmius cohaerens) in frequently flooded area slightly above a creek bottom on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Caps of Bristled Parachute mushrooms (Marasmius cohaerens) in frequently flooded area slightly above a creek bottom on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Gills of Bristled Parachute mushrooms (Marasmius cohaerens) in frequently flooded area slightly above a creek bottom on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Bristled Parachute mushrooms (Marasmius cohaerens) on sandy and silty soil in frequently flooded area slightly above a creek bottom on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Various seeds collected in a frequently flooded area near Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 4, 2020
 Water-primrose (Ludwigia) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Small yellow flower of evening primrose or Ludwigia(?) on Post Oak Trail in Lick Creek Park. College Station, Texas, April 16, 2010
 Trailway through a frequently flooded area near Birch Creek Unit of Somerville Lake State Park. Texas, July 21, 2022
 Shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Water primrose with narrow leaves (Ludwigia) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Dead oaks in frequently flooded area near Birch Creek Unit of Somerville Lake State Park. Texas, July 21, 2022
 Pathway in a frequently flooded area on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 3, 2023
 Spider web in dew in frequently flooded area on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Flower of shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Green leaves of water-primrose (Ludwigia) on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Carpet of leaves of water-primrose (Ludwigia) on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Water-primrose (Ludwigia) in a ditch in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 25, 2010
 Remains of dry oaks in frequently flooded area on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Close-up of a flower of shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Shrubby water-primrose (Ludwigia octovalvis) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, June 22, 2021
 Whitestar morning-glory (Ipomoea lacunosa) with rust fungus Coleosporium ipomoeae in a frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Shoot of water-primrose (Ludwigia) and red water fern (Azolla filiculoides) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Shoot of water-primrose (Ludwigia) and red water fern (Azolla filiculoides) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Remains of dead forest in frequently flooded area on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Tetrameric flower of water-primrose willowherb (Ludwigia) near Onion Creek in McKinney Falls State Park. Austin, Texas, October 26, 2008
 Water-primrose (Ludwigia) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Spikelets of some small area in frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 20, 2022
 Some semi-aquatic plant, may be water primrose (Ludwigia), together with Texas balloonwort (Sphaerocarpos texanus) on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Flower of water-primrose (Ludwigia) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Meadow waxcap mushrooms (Cuphophyllus pratensis) in area of sedge meadow overgrown by water oaks and elm, with grass on the ground, in Lick Creek Park. College Station, Texas, December 22, 2021
 Shrubby water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022
 Frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 17, 2019
 Path across frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Frequently flooded area with dead oak trees at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 31, 2022
 Path in a frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, June 19, 2022
 Water primrose (Ludwigia) in Bastrop State Park. Bastrop, Texas, September 10, 2020
 Flower of shrubby water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Blooming shrubby water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Water-primrose (Ludwigia) in Ladybird Johnson Wildflower Center. Austin, Texas, July 26, 2008
 Yellow flower of shrubby water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Shrubby (narrow-leaf) water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 22, 2008
 Close up of a flower of shrubby water-primrose (Ludwigia octovalvis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Shoot of water-primrose (Ludwigia) on shores of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
|