 Purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Downy lobelia (Purple dewdrop, Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
 Purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Flowers of purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Green lynx spider preying on a skipper butterfly on Purple dewdrop (downy lobelia, Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
 Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 30, 2018
 Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Blue flower of downy lobelia (Purple dewdrop, Lobelia puberula) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Green lynx spider on purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Downy lobelia (Purple dewdrop, Lobelia puberula) 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, August 24, 2024
 Purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Close-up of purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Flowers of purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Green lynx spider preying on a skipper butterfly on Purple dewdrop (Lobelia puberula) 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
 Close up of a green lynx spider preying on a skipper butterfly on Purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
 Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
 Purple dewdrop (Lobelia puberula) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
 Blue flower of Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest. Texas, November 1, 2008
 Blue flower of Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest, with 2 short ear-like upper petals and 3 broad wedge-shaped lower petals. Huntsville, Texas, September 14, 2008
 Purple dewdrop (Lobelia puberula) on Lone Star Hiking Trail east from Trailhead 3 in Sam Houston National Forest near Montgomery. Texas, October 9, 2022
 Blooming purple dewdrop (Lobelia puberula) on Lone Star Hiking Trail east from Trailhead 3 in Sam Houston National Forest near Montgomery. Texas, October 9, 2022
 Purple dewdrop (Lobelia puberula) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Flowers of purple dewdrop (Lobelia puberula) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Brown skipper butterfly together with a spider on purple dewdrop (Lobelia puberula) on Lone Star Hiking Trail east from Trailhead 3 in Sam Houston National Forest near Montgomery. Texas, October 9, 2022
 Downy lobelia (Purple dewdrop, Lobelia puberula) in Lick Creek Park. College Station, Texas, August 2, 2018
 Purple dewdrop (Lobelia puberula) in Lick Creek Park. College Station, Texas, October 17, 2010
 Purple dewdrop (Lobelia puberula) in Watson Rare Native Plant Preserve. Warren, Texas, November 9, 2013
 Flower of purple dewdrop (Lobelia puberula) in Watson Rare Native Plant Preserve. Warren, Texas, November 9, 2013
 Purple bindweed (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Cardinal flower (Lobelia cardinalis) near a creek on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021
 Purple pleatleaf (Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Purple flowers of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Purple bindweed (Ipomoea cordatotriloba) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Purple toothed polypore mushrooms (Trichaptum biforme) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018
 Purple toothed polypore mushrooms (Trichaptum biforme) on a mossy log on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018
 Cardinal flower (Lobelia cardinalis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 26, 2020
 Palafoxia rosea on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Back lit cardinal flower (Lobelia cardinalis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 14, 2019
 Cardinal flower (Lobelia cardinalis) in area of floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, September 22, 2018
 Cardinal flower (Lobelia cardinalis) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2020
 Caterpillar munching leaf of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Yellow-bellied grasshopper on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Water-primrose (Ludwigia) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Green lynx spider on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Beautyberry (callicarpa americana) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Black hairy caterpillar on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Flowers of Palafoxia rosea on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Cardinal flower (Lobelia cardinalis) near a creek on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 14, 2019
 Sensitive brier (Schrankia uncinata)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Fruits of beautyberry (callicarpa americana) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Flowering spurge (Euphorbia corollata) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Baby caterpillars eating oak leaves on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Flowering spurge Euphorbia corollata on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Mistflower (Eupatorium coelestinum, wild ageratum) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Trailing fuzzy-bean (Strophostyles helvola) on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Trailing fuzzy-bean (Strophostyles helvola) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 White flowering spurge Euphorbia corollata on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Mistflower (Eupatorium coelestinum, Wild ageratum) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Green lynx spider on gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Mistflower (Eupatorium coelestinum, Wild ageratum) on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Close-up of flowering spurge Euphorbia corollata on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Cardinal flower (Lobelia cardinalis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 13, 2024
 Purple bindweed (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Purple pleatleaf (Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Purple bindweed (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Blooming mistflower (Eupatorium coelestinum, wild ageratum) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Purple bindweed (Ipomoea cordatotriloba) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Blooming sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Purple threeawn grass (Aristida purpurea) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Purple threeawn grass (Aristida purpurea) on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 Purple threeawn grass (Aristida purpurea) on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Ray flowers of sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Sanguine purple coneflowers (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022
 Trailing fuzzy-bean (Strophostyles helvola) with flowers and fruits on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Soldier Beetle (Chauliognathus) on flowers of late-flowering boneset on Richards Loop Trail in Sam Houston National Forest. Texas, September 6, 2021
 Purple fruits of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Purple toothed polypore mushrooms (Trichaptum biforme) on a dry oak on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Disc flowers of sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Side view of sanguine purple coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Sanguine purple coneflower (Echinacea sanguinea) and bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Morning Glory (purple bindweed, Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
 Hairy Ruellia (Ruellia humilis) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Purple pleat-leaf (Pinewood lily, Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022
 Back-lit purple flower of wood sorrel in Sam Houston National Forest on Little Lake Creek Loop Trail. Richards, Texas, April 4, 2010.
 Underside of purple toothed polypore mushrooms (Trichaptum biforme) on a dry oak on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest, with 3 large rounded dark purple outer petal segments and 3 boat-like inner petals with a yellow spot at central pithed-in area. Richards, Texas, June 22, 2008
 Flower of hairy Ruellia (Ruellia humilis) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Cardinal flower (Lobelia cardinalis) near Caney Creek Trail in Sam Houston National Forest, near Huntsville. Texas, September 30, 2007
 Tick clover (tick-trefoil, beggar lice, Desmodium) on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Fruits of tick clover (tick-trefoil, beggar lice, Desmodium) on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Purple silkyscale grass (Anthaenantia rufa, Anthenantia rufa) on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Purple silkyscale grass (Anthaenantia rufa, Anthenantia rufa) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
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