 Yellow flowers of sunflower family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011
 Yellow aster family flowers in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Yellow flowers of Carolina jessamine (Gelsemium sempervirens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Yellow flowers of narrowleaf silkgrass (Pityopsis graminifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Yellow flower of aster family on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Yellow star-grass (Hypoxis hirsuta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Yellow flower of aster family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Yellow trumpet of Carolina jessamine (Gelsemium sempervirens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Yellow wood sorrel (shamrock, Oxalis dillenii?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 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
 White flowers of blackberry 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
 Flowers of woolly-white (Hymenopappus) on Road FS 203 near 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
 Flowers of nodding beardtongue (Penstemon laxiflorus) on 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
 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
 Tubular flowers of nodding beardtongue (Penstemon laxiflorus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Winter rosette of a plant of aster family on FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
 Small yellow flower of pea family (Pencil flower, Stylosanthes biflora) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Flowers of downy phlox (Phlox pilosa) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 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
 Yellow flowers of sunflower family on a beach in Solnechnoe, west from Saint Petersburg. Russia, June 30, 2011
 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
 Sunflower bud in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Yellow berries of horsenettle (Solanum carolinense) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Small yellow flowers of agrimony (Agrimonia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Yellow flowers of St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Sunflower (Helianthus) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
 White aster flowers on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 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
 Underside of a solitary yellow fibrecap (Inocybe) mushroom in muddy area on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 Some small garlic with white flowers (Allium) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 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
 Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Opening flowers of green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flowers of Drummond wild onion (Allium drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 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
 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
 Flowers of Nodding Ladies-Tresses Orchid (Spiranthes cernua) on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Flowers of rush (Juncus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 White flowers of blackberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Shoot of peppervine on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 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
 Mosquito on flowers of woolly-white (Hymenopappus artemisiaefolius) 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 woolly rosette grass (Dichanthelium scabriusculum) 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
 Phlox flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Shoot of hickory on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young reddish leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Some small grass on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming blackberry on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flower of blackberry on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Yellow flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 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
 Flowers of blue eyed grass (Sisyrinchium) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Reddish young leaves and flowers of hawthorn on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Flowers of lyreleaf sage (Salvia lyrata) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Fluffy seeds of a plant of aster family on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Globe beak-rush (Rhynchospora) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Underside of fieldcap (Agrocybe)(?) mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Phylloxera galls on hickory leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Small bluets (Hedyotis crassifolia) 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 3, 2024
 Lyreleaf sage (Salvia lyrata) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Daisy fleabane (Erigeron) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Nodding beardtongue (Penstemon laxiflorus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Woolly-white (Hymenopappus) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blue eyed grass (Sisyrinchium) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young leaves of hickory on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 White fleshy Amanita mushrooms on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 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
 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
 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
 Blue spiderwort (tradescantia) flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Small mushrooms Mallocybe unicolor(?) under pines on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Common blue violet (Viola sororia) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Violet wood sorrel (Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Back lit Phylloxera galls on a hickory leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming nodding beardtongue (Penstemon laxiflorus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Rose vervain (Glandularia canadensis) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming Carolina jessamine (Gelsemium sempervirens) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Close-up of mushrooms Mallocybe unicolor(?) under pines on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Inflorescence of nodding beardtongue (Penstemon laxiflorus) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Spores (in KOH) of mushrooms Mallocybe unicolor(?) collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Rock-rose (Helianthemum carolinianum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming blue eyed grass (Sisyrinchium) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
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