 St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blooming St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Yellow flower of St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Small bee on a flower of St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 St. Peter s-wort (Hypericum crux-andreae) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
 Tiny yellow flowers of Hypericum(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Tiny yellow flowers of Hypericum(?) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Flowers of St. Andrew cross (Hypericum, Ascyrum hypericoides) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, September 21, 2024
 Yellow aster family flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Yellow flower of aster family on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Purple flowers of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Flowers of mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of blue waterleaf (Hydrolea ovata) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of Virginian agave (Manfreda virginica) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of snow-on-the-prairie (Euphorbia bicolor) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Snow-on-the-prairie (Euphorbia bicolor) with flowers on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Croton glandulosus with tiny white flowers on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Flowers of trailing fuzzy-bean (Strophostyles helvola) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Close-up of flowers of trailing fuzzy-bean (Strophostyles helvola) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of hairy Ruellia (Ruellia humilis) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of hairy Ruellia (Ruellia humilis) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 St. Andrew cross (Ascyrum hypericoides, Hypericum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Yellow flowers of sunflower family on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 St. Andrew cross (Ascyrum hypericoides, Hypericum) on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022
 St. Andrew cross flower (Hypericum, Ascyrum hypericoides) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Ants on flowers of southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of St. John s Wort (Hypericum perforatum) in fields west from Deviatkino. Saint Petersburg, Russia, June 29, 2011
 Blooming st. Andrew cross flower (Hypericum, Ascyrum hypericoides) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Yellow flowers of narrowleaf silkgrass (Pityopsis graminifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Yellow flowers of Carolina jessamine (Gelsemium sempervirens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Yellow flowers of sunflower family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 St. Andrew cross (Ascyrum hypericoides, Hypericum) flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 St. Andrew cross flower (Hypericum, Ascyrum hypericoides) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
 St. Andrew cross (Ascyrum hypericoides, Hypericum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
 Yellow-bellied grasshopper on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Small yellow flowers of agrimony (Agrimonia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Back lit St. Andrew cross flower (Hypericum, Ascyrum hypericoides) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
 Flowers of St. John s Wort (Hypericum perforatum, Russian name Zveroboy) on a meadow near Zapliusye in Pskov Region south from Saint Petersburg, Russia, June 27, 2010
 St. Andrew cross (Hypericum, Ascyrum hypericoides) 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, September 21, 2024
 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
 Flowers of Palafoxia rosea on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Boneset(?) flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Some grass on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Dayflower (Commelina) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Dayflower (Commelina) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Flowers and green fruits of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Amanita mushroom on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Cap of Amanita mushroom on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Inflorescence of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Tick clover (Desmodium)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Flower of Palafoxia rosea on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Blooming gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Gills of Amanita mushroom on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Underside of Amanita mushroom on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Trailing fuzzy-bean (Strophostyles helvola) with flowers and fruits on Richards Loop Trail in Sam Houston National Forest. Texas, September 23, 2021
 Close-up of flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Soldier Beetle (Chauliognathus) on flowers of late-flowering boneset on Richards Loop Trail in Sam Houston National Forest. Texas, September 6, 2021
 Bolete mushrooms Boletus patrioticus(?) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Cap of some yellow Amanita mushroom on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Virginian agave (Manfreda virginica) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blue waterleaf (Hydrolea ovata) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Hairy leaves of bluestem grass on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Chinese tallow (Sapium sebiferum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Snow-on-the-prairie (Euphorbia bicolor) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blazing star (gayfeather, Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Purple pleatleaf (Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Snow-on-the-prairie (Euphorbia bicolor) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Close-up of a flower of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Green katidid on bluestem grass on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Western ironweed (Vernonia baldwini) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Morning Glory (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Greenish-yellow flowers of ditch-stonecrop (Penthorum sedoides) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2022
 Leaf of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
 Barometer earthstar mushroom (Astraeus hygrometricus)(?) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Underside of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Bright yellow brittlegill mushroom Russula flavida on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Underside of some yellow Amanita mushroom on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Elephant foot (Elephantopus carolinianus) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blooming elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Inflorescence of elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Wild Morning Glory (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Chamberbitter plant (stonebreaker, Phyllanthus niruri) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
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