 Narrowleaf silkgrass (Pityopsis graminifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Blooming narrowleaf silkgrass (Pityopsis graminifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Narrowleaf silkgrass (Pityopsis graminifolia) 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
 Yellow flowers of sunflower family on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of narrowleaf false dragonhead (Physostegia digitalis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 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
 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
 White aster flowers on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Flowers of Nodding Ladies-Tresses Orchid (Spiranthes cernua) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 White aster flowers 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
 Tiny yellow flowers of Hypericum(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Narrowleaf false dragonhead (Physostegia digitalis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019
 Tiny yellow flowers of Hypericum(?) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Yellow aster family flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Yellow star-grass (Hypoxis hirsuta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Yellow berries of horsenettle (Solanum carolinense) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Yellow flowers of St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Small yellow flowers of agrimony (Agrimonia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Yellow wood sorrel (shamrock, Oxalis dillenii?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Yellow trumpet of Carolina jessamine (Gelsemium sempervirens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Cap of a solitary yellow fibrecap (Inocybe) mushroom in muddy area on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 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
 Blue spiderwort (Tradescantia) flowers on 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
 Spores of white resupinate polypore mushroom on a cut surface of a pine log from Richards Loop Trail in Sam Houston National Forest, collected 11/5/2024. Texas, October 11, 2024
 Underside of a solitary yellow fibrecap (Inocybe) mushroom in muddy area on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 Flowers of woolly-white (Hymenopappus) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of blue eyed grass (Sisyrinchium) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Some small garlic with white flowers (Allium) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flowers of nodding beardtongue (Penstemon laxiflorus) 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
 Yellow flower of aster family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 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
 Side view of a solitary yellow fibrecap (Inocybe) mushroom in muddy area on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 Blooming aster on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Amanita mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Beautyberry from road FS 203 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
 Road FS 203 with oak and pine forest near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Flowers of Drummond wild onion (Allium drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Opening flowers of green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Tubular flowers of nodding beardtongue (Penstemon laxiflorus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Yellow thistle (Bull thistle, Cirsium horridulum) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Spores (in lugol) of a solitary yellow fibrecap (Inocybe) mushroom from muddy area collected on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 Pine trees on road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Beautyberry (callicarpa americana) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Section of Amanita mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Fluffy seeds of frostweed(?) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Spores of mustard yellow polypore mushrooms (Phellinus gilvus) collected 2 days before on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, February 17, 2024
 Mustard yellow polypore mushrooms (Phellinus gilvus) at the base of dried sweetgum(?) on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, February 15, 2024
 Flowers of purple dewdrop (Lobelia puberula) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Climbing fern (Lygodium japonicum) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Pitcher sage (Salvia azurea) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Grass leaves in ultraviolet light on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Fluffy seeds of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Yellow flower of wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Flowers of woolly rosette grass (Dichanthelium scabriusculum) on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Pink flowers of woolly-white (Hymenopappus artemisiaefolius) on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flowers of elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 Mosquito on flowers of woolly-white (Hymenopappus artemisiaefolius) on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Seeds of elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Scaly sawgill mushroom (Neolentinus lepideus) on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Leaf of an aquatic plant in ultraviolet light from Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Southern prairie aster (Eurybia hemispherica) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Smallhead doll s daisy (Boltonia diffusa) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Flowers of downy phlox (Phlox pilosa) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of nodding ladies-tresses orchid (Spiranthes cernua) on Richards Loop Trail in Sam Houston National Forest. Texas, October 22, 2020
 Flowers of elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
 Flowers of elegant gayfeather (pinkscale, Liatris hesperelegans, former L. elegans) on Richards Loop Trail in Sam Houston National Forest. Texas, October 18, 2022
 Elephant foot flowers (Elephantopus carolinianus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012
 Flowers of purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 White resupinate polypore mushroom on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Seeds of late-flowering boneset (Eupatorium serotinum)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Underside of scaly sawgill mushroom (Neolentinus lepideus) on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Slender (long-bristle) Indiangrass (Sorghastrum elliottii) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 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
 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
 Grapeleaf skeletonizer moth (Harrisina americana) on flowers of woolly-white on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Underside of yellow blusher mushrooms (Amanita flavorubens) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 3, 2024
 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
 Flowers of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Texture of white resupinate polypore mushroom on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Growth of white resupinate polypore mushroom on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Close-up of white resupinate polypore mushroom on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, October 5, 2024
 Blue flower of southern prairie aster (Eurybia hemispherica) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 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
 Spores of yellow blusher mushrooms (Amanita flavorubens) collected a day before on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 4, 2024
 Cross section of yellow blusher mushrooms (Amanita flavorubens) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 3, 2024
 Yellow blusher mushrooms (Amanita flavorubens) under small oaks on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 3, 2024
 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
 Flowers of slender (long-bristle) Indiangrass (Sorghastrum elliottii) on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, October 8, 2020
 Flowers of Nodding Ladies-Tresses Orchid (Spiranthes cernua) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 20, 2018
 Small pinkish flowers of beefsteak plant (Perilla frutescens) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, October 4, 2008
 White mistflower (Havana snakeroot, Ageratina havanensis, Eupatorium havanense) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Cross section 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
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