 Shells on dry bottom of Somerville Lake in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
 Skeleton of alligator gar on dry bottom of Somerville Lake in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
 Petrified wood on dry bottom of Somerville Lake in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
 Rattlebush growing on dry bottom of Somerville Lake in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
 Some small sedge on a dry lake bottom on a shore of Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2020
 Texture of weathered buttonbush root on a lake shore near Birch Creek Unit of Somerville Lake State Park. Texas, July 4, 2022
 Texture of buttonbush root at low water level on a lake shore near Birch Creek Unit of Somerville Lake State Park. Texas, July 4, 2022
 Caked mud on bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Caked mud on bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dried bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dried bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dried cracked mud on bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dried bottom with cracked mud of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Cracked soil on bottom of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Cracks in mud on bottom of dried Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2023
 Old oak stump on bottom of dried Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2023
 Green algae on bottom of dried Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2023
 Weathered oak wood on bottom of dried Somerville Lake near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2023
 Dried bottom with green grass of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dried bottom with emerging green grass of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, October 4, 2022
 Dry tree trunk in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
 A tree near the lake at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2019
 Silhouette of a tree near the lake at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2019
 Frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Spreading frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Close-up of frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Pattern of frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Texture of frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 White cover of frothy porecrust fungus (Oxyporus latemarginatus) on a fallen tree near Yegua Creek on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Caked mud on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Foliose lichens on a hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Caked mud with grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Caked mud on dried bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Cracks and grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Mud with green grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Dried mud and grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Flat caked mud on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Rosette lichen (Physcia)(?) on a hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Tree dwelling moss Leucodon julaceous on a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 5, 2020
 Powdery white corticioid fungus under a fallen tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Dog vomit slime mold (Fuligo septica) on a tree on north shore of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, May 6, 2018
 Fresh grass on caked mud on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Cracked soil with some grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Cracked soil and grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Green grass on dried bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Caked mud overgrown by grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Caked mud with green grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Dry oak tree on a lake shore near Birch Creek Unit of Somerville Lake State Park. Texas, July 4, 2022
 Bony beard lichen (Usnea trichodea) with apothecia on an elm tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Resupinate polypore mushroom on a fallen juniper(?) tree in dry area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 13, 2022
 Polypore mushroom Ganoderma sessile at a base of a living tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Polypore mushroom Trametes villosa on a dried juniper tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Common tree dwelling moss Leucodon julaceous on a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Dead oak skeleton at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Ruellia flower at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Dayflower (Commelina) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
 Antlion pit traps at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Vervain (Verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
 Grasshopper ona plant at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Dayflower (Commelina) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Dry seeds of mallow(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Drying vegetation at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Dry tree on the lake shore near a road along north shore of Lake Somerville near Birch Creek Unit Somerville Lake State Park. Texas, March 14, 2018
 Cracks in soil overgrown by grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Flat caked mud and mussel shells on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Caked mud covered by green grass on bottom of the lake near Birch Creek Unit of Somerville Lake State Park. Texas, October 12, 2022
 Old dead oak tree on a lake shore near Birch Creek Unit of Somerville Lake State Park. Texas, July 4, 2022
 Shoot of sumpweed (Iva annua) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Buttonbush (Cephalanthus occidentalis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Path with dried grass at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Drying leaves of elm on the ground at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Turnsole (Heliotropium indicum) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
 Dried leaves of box elder(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Tickseed sunflower (Bidens) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
 Buttonbush (Cephalanthus occidentalis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Dodder (Cuscuta) on eryngo at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Various dry brown leaves on the ground at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Horseweed (Conyza canadensis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Scorched bush of beautyberry at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Dry curled leaves of beautyberry at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Various fruticose lichens on a small tree or a bush in half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Pendent strands of bony beard lichen (Usnea trichodea) on an elm tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Strands of bony beard lichen (Usnea trichodea) on an elm tree in wet area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Close-up of resupinate polypore mushroom on a fallen juniper(?) tree in dry area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 13, 2022
 Texture of resupinate polypore mushroom on a fallen juniper(?) tree in dry area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 13, 2022
 Some white resupinate polypore mushroom at the base of a dried juniper tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Lichen Dirinaria applanata or may be Physcia on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Pyxine(?) and white fringe lichen (Heterodermia albicans) on a hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Dodder (Cuscuta) on sumpweed (Iva annua) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Path across frequently flooded area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Blooming slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Dried leaves of hackberry on the ground at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Leaves of partridge pea (Cassia fasciculata) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Dried leaves of post oak on the ground at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 31, 2022
 Halberdleaf rosemallow (Hibiscus laevis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
 Underside of mushroom Gymnopus luxurians at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 17, 2021
 Morning glory (Ipomoea cordatotriloba) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Shoot of buttonbush (Cephalanthus occidentalis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2020
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