 Rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Flowers of rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Rose vervain (Glandularia canadensis) at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flowers of rose vervain (Glandularia canadensis) at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Flower of rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 16, 2019
 Rose vervain (Glandularia canadensis) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, February 28, 2023
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Rose vervain (Glandularia canadensis) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Rose vervain (Glandularia canadensis) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Rose vervain (Glandularia canadensis) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Rose vervain (Glandularia canadensis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Blooming rose vervain (Glandularia canadensis) on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2024
 Rose vervain (Glandularia canadensis) on Forest Service Road 231 near North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2022
 Rose vervain (Glandularia canadensis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023
 Flowers of rose vervain (Glandularia canadensis) on Forest Service Road 231 near North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2022
 Pink flowers of rose vervain (Glandularia canadensis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023
 Rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
 Flowers of rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
 Rose vervain (Verbena canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
 Close up of a cluster of flowers of rose vervain (Verbena canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
 Canada wildrye (Elymus canadensis)(?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Bur-like seed capsules with hooks of Canadian black snakeroot (Sanicula canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Blooming rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Yellow flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Shoot of blackjack oak on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Young leaves of elm on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Fresh leaves of blackjack oak on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Missouri violet (Viola missouriensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Fragrant sumac (Rhus aromatica) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Macartney rose (Rosa bracteata) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Macartney rose (Rosa bracteata) in a pine forest on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Columned stinkhorn mushroom (Linderia columnata, Clathrus columnatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Resupinate form of conifer mazegill mushroom (Gloeophyllum sepiarium) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Crust form of conifer mazegill mushroom (Gloeophyllum sepiarium) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Close-up of columned stinkhorn mushroom (Linderia columnata, Clathrus columnatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Macartney rose (Rosa bracteata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Side view of columned stinkhorn mushroom (Linderia columnata, Clathrus columnatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Blooming Macartney rose (Rosa bracteata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Cap of black-edged Pluteus mushroom (Pluteus atromarginatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Canada wild rye (Elymus canadensis)(?) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Rock-rose on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Macartney rose (Rosa bracteata) with flower beetles on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Blooming Rock-rose (frostweed, sunrose, Helianthemum carolinianum) in Sam Houston National Forest on Little Lake Creek Loop Trail. Richards, Texas, April 4, 2010.
 Gills of black-edged Pluteus mushroom (Pluteus atromarginatus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Spikes of Canada wild rye (Elymus canadensis)(?) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Slender vervain (Verbena rigida) on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Yellow flower of Rock-rose (frostweed, sunrose, Helianthemum carolinianum) in Sam Houston National Forest on Little Lake Creek Loop Trail. Richards, Texas, April 4, 2010.
 Leaves of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, April 16, 2019
 Rock-rose (Helianthemum carolinianum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming rock-rose (Helianthemum carolinianum) 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
 Artichoke-shaped gall on on the top of a shoot of goldenrod Solidago canadensis on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Shoots of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2022
 Leaves of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2022
 Yellow flower of rock-rose (Helianthemum carolinianum) 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
 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
 Fly agaric mushrooms (Amanita persicina, Amanita muscaria var. persicina) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Flower of dewberry at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Some fresh leaves at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Phlox flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Red shoot of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Mushroom Amanita morrisii in a pine forest at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Sulphur tuft mushrooms (Hypholoma fasciculare) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Mature milkcap mushrooms Lactarius paradoxus on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Close-up of corticioid fungus Coniophora olivacea on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Flower of dewberry with a stilt bug at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Shoot of muscadine(?) grape on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Some young hairy leaves on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Some blooming tree like a maple at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Blooming dewberry (Rubus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Red shoot of mustang grape on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Young leaves of hawthorn at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flower of blue violet (Viola) in a pine forest at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Orange shoot of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Blooming hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Blooming blackberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Shoot of sweetgum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Flower of blackberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Rush (Juncus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Shoot of sumac on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young red leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Young oak leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Small tooth mushroom Hydnum repandum under pines on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Corticioid fungus Coniophora olivacea on a fallen pine on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Galls on leaves of goldenrod Solidago canadensis caused by gall midges Asteromyia carbonifera with symbiotic fungus Botryosphaeria dothidea on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Bracket polypore mushroom Inonotus on a small osage orange tree in a pine forest on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
 Blue spiderwort (tradescantia) flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Young red leaves of mustang grape on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Some young glossy leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Shoot of Virginia creeper on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
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