 Pattern of a young leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaf of bracken fern (Pteridium aquilinum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Fiddleheads of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Fresh leaves of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Crosier (a coiled young fern frond) of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Crosier (a coiled young fern frond) of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Malformed leaves of bracken fern (Pteridium aquilinum) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Irregularly grown leaves of bracken fern (Pteridium aquilinum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Bracken fern (Pteridium aquilinum) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Fiddleheads of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Shoot of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Unfolding leaves of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Young leaves of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Young leaf of bracken fern (Pteridium aquilinum) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Huntsville, Texas, April 2, 2019
 Fiddlehead of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Fiddlehead of bracken fern (Pteridium aquilinum) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Fiddleheads of bracken fern (Pteridium aquilinum) in Orekhovo, north from Saint Petersburg. Russia, June 5, 2014
 Young leaves of bracken fern (Pteridium aquilinum) in Lembolovo, 40 miles north from Saint Petersburg. Russia, June 12, 2009
 Green nymph of grasshopper on a dried leaf of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Yellow leaves of bracken fern under pines on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Butterfly pea (Centrosema virginianum) and bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Sanguine purple coneflower (Echinacea sanguinea) and bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Skunk in tail-high threat posture among bracken fern on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Black eyed susan (Rudbeckia hirta) with bracken fern at Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022
 Fall colors of bracken ferns (Pteridium aquilinum) north from Komarovo, 25 miles west from Saint Petersburg. Russia, September 16, 2013
 Fall colors of bracken ferns (Pteridium aquilinum) at a road stop north from Luga, Leningrad Region. Russia, September 8, 2013
 Bracken fern with a fallen flower of Carolina jessamine on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Downy phlox (Phlox pilosa) blooming over bracken fern on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flower of Carolina jessamine fallen on bracken fern on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest east from Trail Head No.4. Texas, March 15, 2022
 Flower of butterfly pea (Centrosema virginianum) among bracken fern on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, June 22, 2021
 Clitocybula lacerata(?) mushrooms in a shallow ditch or depression near Forest Road 302, under bracken fern, in a pine forest, on partially burned ground after prescribed fire in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Close up of Clitocybula lacerata(?) mushrooms in a shallow ditch or depression near Forest Road 302, under bracken fern, in a pine forest, on partially burned ground after prescribed fire in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Clitocybula lacerata(?) mushrooms among pine needles in a shallow ditch or depression near Forest Road 302, under bracken fern, in a pine forest, on partially burned ground after prescribed fire in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Curved leaves of bracken ferm with insect eggs on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Venation of a sassafras leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Leaf of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
 Outgrowth on a leaf of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
 Leaf pattern of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
 Leaf of climbing fern (Lygodium japonicum) suffered from freeze(?) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
 Back lit Phylloxera galls on a hickory leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young red lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Fallen trumpet of Carolina jessamine (Gelsemium sempervirens) on bracken fern on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 2, 2022
 Close-up of a greenbrier leaf with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022
 Leaf of resurrection fern (Pleopeltis polypodioides) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020
 Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Winged elm on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Shoot of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
 Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 18, 2022
 Close-up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Back lit oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Climbing fern (Lygodium japonicum) on Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022
 Climbing fern (Lygodium japonicum) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Red young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Red wrinkled leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Rusty shoot of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Some rusty oak seedling on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Climbing fern (Lygodium japonicum) on a forest road near Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 23, 2018
 Pines near Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Climbing fern and Canadian moonseed vine on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Spider on leaves of beautyberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Fresh green leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Close-up of luna moth on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Back lit leaves of sassafra on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Early blooming hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young orange leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Wrinkled young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young wrinkled leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Back lit leaves of willow oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Rock-rose on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Climbing fern (Lygodium japonicum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Climbing fern (Lygodium japonicum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
 Climbing fern (Lygodium japonicum) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 22, 2023
 Carolina buckthorn (Frangula caroliniana) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Red young leaves of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Rattan vine (Berchemia scandens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Leaves of farkleberry (Vaccinium arboreum)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Black swallowtail butterfly (Papilio polyxenes) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Blooming rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Red leaves and flower buds of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Blooming rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Reddish young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of rattan vine (Berchemia scandens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Yellow flower of rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Head of black swallowtail butterfly (Papilio polyxenes) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Yellow flower of rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Necrotic spots that develop into angular lesions on underside of a leaf of persimmon (Diospyros virginiana) caused by persimmon Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
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