 Phylloxera galls on hickory leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of hickory on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young leaves of hickory on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Reddish young leaves of hickory on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Young tender leaves of hickory on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Unfolding and growing young hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Young reddish leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Back lit Phylloxera galls on a hickory leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 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
 Young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 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
 Yellow leaves of hickory on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Young leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Some young back lit leaves on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 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
 Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Young red leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Red young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young oak leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Close-up of Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Texture of Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Young leaves of sumac(?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young leaves of sumac(?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Some young glossy leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young orange leaves of an 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
 Wrinkled young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of sweetgum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Lower surface of hickory leaves with Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Leaves of hickory with black spots and holes caused by insects(?) on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
 Young leaves of elm on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Young leaves of Virginia creeper on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young leaves and flowers of hawthorn 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
 Young leaves of chamberbitter plant (stonebreaker, Phyllanthus niruri) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2022
 Some young hairy leaves on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Reddish young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of hawthorn at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Young leaves of blackjack oak (Quercus marilandica) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young leaves of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young red leaves of mustang grape on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Young leaves of rattan vine (Berchemia scandens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of Muscadine Grape (Vitis rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Blooming blackberry on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Some small grass on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Trilobed leaves of paper mulberry (Broussonetia papyrifera) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Hairy leaves of beaked hawkweed (Hieracium gronovii) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flower of blackberry on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Woolly-white (Hymenopappus) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 White flowers of blackberry on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Daisy fleabane (Erigeron) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Young leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Young oak leaves on Richards Loop Trail in Sam Houston National Forest. Texas, June 27, 2020
 Flowers of woolly-white (Hymenopappus) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Drummond s skullcap (Scutellaria drummondii) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of woolly-white (Hymenopappus) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Rose vervain (Glandularia canadensis) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Rock-rose (Helianthemum carolinianum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming woolly-white (Hymenopappus) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young leaves of a small oak on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Back lit young leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Young leaves of beautyberry on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Cut-leaved evening primrose (Oenothera laciniata) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming lyreleaf sage (Salvia lyrata) on Road FS 203 near 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 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
 Young leaves of oak on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
 Yellow flower of rock-rose (Helianthemum carolinianum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young leaves of southern wax myrtle (Myrica cerifera) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Young leaves of a tree on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Young leaves of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Young leaves of flameleaf sumac on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Young leaves of elm on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Downy phlox (Phlox pilosa) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of downy phlox (Phlox pilosa) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Reddish young leaves of oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 22, 2020
 Black spots with holes on a shoot of hickory on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
 Young leaves of elm on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Some young glossy leaves on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Hickory leaf with dense cover of Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Woolly growth (galls) on underside of a hickory(?) leaf on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022
 Young leaves of hickory near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, April 15, 2021
 Young leaves of elm on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 25, 2024
 Young leaves of muscadine grape on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Grass leaves in ultraviolet light on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Rosette of leaves of Lactuca(?) on FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
 Hairy leaves of spiderwort (Tradescantia) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Shoot of hickory on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Beautyberry from road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Leaves of beaked hawkweed (Hieracium gronovii) on Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
 Red leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Road FS 203 with oak and pine forest near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Road FS 203 and pine forest near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Young leaves of parsley hawthorn (Crataegus marshallii) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Young leaves of fragrant sumac (Rhus aromatica) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Pine trees on road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Young leaves of a small tree near a creek on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
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