 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) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 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) in dew on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 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 3, 2024
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 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 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 Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 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
 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
 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
 Flowers of rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
 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
 Rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
 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
 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
 Fragrant sumac (Rhus aromatica) with flowers at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Macartney rose (Rosa bracteata) in a pine forest on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Flowers of spiderwort (Tradescantia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 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
 Phlox flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 White flowers of spurge Euphorbia corollata on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Flowers of pink fuzzybean (Strophostyles umbellata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Flowers of green passion flower (Passiflora lutea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Flowers of narrowleaf false dragonhead (Physostegia digitalis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Blue spiderwort (tradescantia) flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Some fresh leaves at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flower of dewberry at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flowers of vervain (verbena) in Antique Rose Emporium. Independence, Texas, March 20, 2019
 Cluster of flowers of narrowleaf false dragonhead (Physostegia digitalis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Masses of flowers of narrowleaf false dragonhead (Physostegia digitalis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Flowers of Blue eyed grass (Sisyrinchium) 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
 Young leaves of hawthorn at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flower of dewberry with a stilt bug at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Mushroom Amanita morrisii in a pine forest at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
 Flowers of Blue eyed grass (Sisyrinchium), backlit, on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 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
 Flowers of daisy fleabane (Erigeron) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 30, 2019
 Flowers of spring beauty (Claytonia virginica) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 16, 2019
 Flowers of Yellow star-grass (woolly stargrass, Hypoxis hirsuta) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Macartney rose (Rosa bracteata) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Small white tubular unopened flowers of nodding beardtongue (Penstemon laxiflorus or australis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Red verbena flowers of Peruvian mock vervain (Glandularia peruviana) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
 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
 Blooming Rock-rose (frostweed, sunrose, Helianthemum carolinianum) in Sam Houston National Forest on Little Lake Creek Loop Trail. Richards, Texas, April 4, 2010.
 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
 Rock-rose (Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 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.
 Boneset(?) flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Pink phlox flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 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
 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
 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
 Flowers of gayfeather (Liatris) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
 Tiny yellow flowers of Hypericum(?) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Flowers of beautyberry (Callicarpa americana) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 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
 Handeless coneflower (Echinacea sanguinea) with drooping strap-like whitish ray flowers below brownish hemispherical cone of disk flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 22, 2008
 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
 Back lit flowers of arrowhead (Sagittaria) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 7, 2013
 Yellow flowers of sunflower family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Flowers of orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 Yellow aster family flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Flowers of Hyssop Skullcap (Scutellaria integrifolia) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 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
 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
 Reddish shoot of elm(?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Dayflower (Commelina) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Dayflower (Commelina) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Spiderwort (Tradescantia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Sunflower (Helianthus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Winecup (Callirhoe) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Dayflower (Commelina) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 Brown corticioid fungus under a log in a pine forest on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Yellow flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Opening flowers of white milkweed (Asclepias variegata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Flowers of flameleaf sumac (Rhus lanceolata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
 Elephant foot flowers (Elephantopus carolinianus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Flowers of elephant foot (Elephantopus carolinianus) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
 Flowers of purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
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