 Shallow water of Flag Pond covered by red water fern (Azolla) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Red water fern (Azolla filiculoides(?)) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Red water fern (Azolla) and other aquatic plants in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Tiny leaves of red water fern (Azolla) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Texture of red water fern (Azolla filiculoides(?)) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Close-up of red water fern (Azolla filiculoides(?)) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 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
 Red water fern (Azolla filiculoides) together with duckweed on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Duckweed 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
 Close-up of 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
 Red water fern (Azolla filiculoides) overgrowing duckweed on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Growth of red water fern (Azolla filiculoides) overgrowing other plants on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Orange-striped ribbonsnake on a carpet of 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
 Head of orange-striped ribbonsnake on 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
 Orange-striped ribbonsnake on a carpet of red water fern (Azolla filiculoides) and duckweed on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Close-up of head of orange-striped ribbonsnake on 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
 Orange-striped ribbonsnake with some parasitic insects on a carpet of 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
 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
 Brookweed (water cabbage, Samolus valerandi) on wet soil with seeping water 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
 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
 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
 Flowers of brookweed (water cabbage, Samolus valerandi) on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Mat of terrestrial water-starwort (Callitriche terrestris) with tiny leaves on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Terrestrial water-starwort (Callitriche terrestris) with tiny leaves and fruits on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Pillow like green mat of terrestrial water-starwort (Callitriche terrestris) with tiny leaves on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Bladderwort (Utricularia gibba) on wet mud of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Blooming bladderwort (Utricularia gibba) on wet mud of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Wet mud of Flag Pond with plants of bladderwort (Utricularia gibba) on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Yellow lotus (Nelumbo lutea) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Rosette of leaves of brookweed (water cabbage, Samolus valerandi) on wet soil near Flag Pond on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Rosettes of leaves and flower spikes of brookweed (water cabbage, Samolus valerandi) on wet soil on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Whitestar morning-glory (Ipomoea lacunosa) near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Yellow flower of bladderwort (Utricularia gibba) on wet mud of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Yellow flower of lotus Nelumbo lutea taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Ovary of American lotus (Nelumbo lutea) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Flower of American lotus (Nelumbo lutea) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Mat of a semi-aquatic plant terrestrial water-starwort (Callitriche terrestris) with tiny leaves on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Mat of water-hyssop (Bacopa monnieri) on a shore of Flag Pond near Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, July 15, 2022
 Close-up of yellow flower of lotus Nelumbo lutea taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Back lit yellow flower of lotus Nelumbo lutea taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Lance-leaf burhead (Echinodorus cordifolius, Sagittaria) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Duckweed and yellow water-weed (Ludwigia peploides) in Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Terrestrial water-starwort (Callitriche terrestris) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Young leaves of water-primrose (Ludwigia) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Glossy leaves of water-primrose (Ludwigia) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Central part of a flower of American lotus (Nelumbo lutea) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
 Shoots of terrestrial water-starwort (Callitriche terrestris) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Balloonwort together with terrestrial water-starwort (Callitriche terrestris) on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 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
 Dry oak tree near Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Mud flats of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Tiny leaves of terrestrial water-starwort (Callitriche terrestris) together with balloonwort on shores of Flag Pond at Lake Somerville Trailway, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 A hill with pines near Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Rusty oil pipes near Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Mud flats and edge of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Some hairy grass on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Various liverworts on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Dead oaks in a formerly flooded area near Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Large pinkgill (Russula) mushrooms on roadside near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Cursed buttercup (Ranunculus sceleratus) on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Cavernous Crystalwort (Riccia cavernosa) on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Close-up of Cavernous Crystalwort (Riccia cavernosa) on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Close-up of Cavernous Crystalwort (Riccia cavernosa) taken from a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Blooming cursed buttercup (Ranunculus sceleratus) in bloom on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Blooming cursed buttercup (Ranunculus sceleratus) on muddy shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Flat green liverwort Riccia huebeneriana on edge of Flag Ponf after its water level fell on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Liverwort Cavernous Crystalwort (Riccia cavernosa) with balloonwort on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Cavernous Crystalwort (Riccia cavernosa) under a dry bush of Sesbania on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Some semi-aquatic plant with tiny yellow flowers on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Close-up of flat green liverwort Riccia huebeneriana on edge of Flag Ponf after its water level fell on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Violet crystalwort (Riccia huebeneriana) on nutrient-poor muds on edge of Flag Ponf after its water level fell on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Lake Somerville Trailway around Flag Pond near Nails Creek Unit of Somerville Lake State Park. Texas, July 15, 2022
 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
 Dry oak trees near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, November 21, 2020
 Shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, November 21, 2020
 View of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Flag Pond, view from Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, July 15, 2022
 Marsh near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Pines near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Old live oak near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, October 31, 2020
 Road near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 26, 2020
 Large dry oak near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, November 21, 2020
 A tree near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, October 31, 2020
 Dried Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, November 21, 2020
 Dry vegetation around Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, November 21, 2020
 Shores of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, October 31, 2020
 Aguatic plants and Texas balloonwort on edge of Flag Ponf after its water level fell on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Texas balloonwort (Sphaerocarpos texanus) on edge of Flag Ponf after its water level fell on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 30, 2021
 Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae on a shore of Flag Pond at Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, April 4, 2021
 Close-up of 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
 Texas balloonwort (Sphaerocarpos texanus) and some moss on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Masses of 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
 Texture of 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
 Dense mat of 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
 Mats of 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
 Texas balloonwort (Sphaerocarpos texanus) with sporophytes(?) on a muddy shore of Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
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