 Chamberbitter plant (stonebreaker, Phyllanthus niruri) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Seedlings of chamberbitter plant (stonebreaker, Phyllanthus niruri) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2022
 Young leaves of chamberbitter plant (stonebreaker, Phyllanthus niruri) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2022
 Chamberbitter plant (stonebreaker, Phyllanthus niruri) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, July 20, 2019
 Leaves of chamberbitter plant (stonebreaker, Phyllanthus niruri) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, July 20, 2019
 Chamberbitter weeds (stonebreaker, Phyllanthus niruri) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
 Seeds of chamberbitter weeds (stonebreaker, Phyllanthus niruri) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
 Chamberbitter plant (stonebreaker, Phyllanthus niruri) with flowers found near Ezdan Hotel in West Bay. Doha, Qatar, August 29, 2014
 Chamberbitter plant (stonebreaker, Phyllanthus niruri) near Dunes Hotel in West Bay. Doha, Qatar, April 22, 2014
 Chamberbitter plant (stonebreaker, Phyllanthus) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, June 11, 2019
 Green carpet of chamberbitter plant (stonebreaker, Phyllanthus) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, June 11, 2019
 Seedlings of chamberbitter plant (stonebreaker, Phyllanthus niruri) on the median strip of Al Istiqlal Street in Onaiza area. Doha, Qatar, April 13, 2016
 Chamberbitter weeds (stonebreaker, Phyllanthus niruri) near Dunes Hotel in West Bay. Doha, Qatar, April 22, 2014
 Chamberbitter weeds (stonebreaker, Phyllanthus niruri) on sidewalk of Al Shatt Street in Onaiza area. Doha, Qatar, April 30, 2015
 Chamberbitter weeds (stonebreaker, Phyllanthus niruri) on the median strip of Al Istiqlal Street in Onaiza area. Doha, Qatar, April 13, 2016
 Chamberbitter weeds (stonebreaker, Phyllanthus niruri) growing from a crevice on sidewalk of Meshrif Street in Onaiza area. Doha, Qatar, February 16, 2016
 Chamberbitter weed (stonebreaker, Phyllanthus niruri) in a small vegetable garden on Ammouriya Street in Onaiza area. Doha, Qatar, June 21, 2015
 Invasive plants of stonebreaker (Phyllanthus) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, June 11, 2019
 Seedlings of leaf-flower plant Phyllanthus niruri under pines on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Leaf-flower plant Phyllanthus niruri and other seedlings along a path on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Close-up of orange seedlings of leaf-flower plant Phyllanthus niruri on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Hundreds of orange seedlings of leaf-flower plant Phyllanthus niruri on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Leaves of leaf-flower plant Phyllanthus niruri when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Young leaf-flower plant Phyllanthus niruri when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Young leaves of leaf-flower plant Phyllanthus niruri when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Close-up of leaves of leaf-flower plant Phyllanthus niruri when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Dense covering of sides of a path by orange seedlings of leaf-flower plant Phyllanthus niruri on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Dense carpet of seedlings of leaf-flower plant Phyllanthus niruri on sides of a path under pines after a prescribed burn on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
 Shoot of chamberbitter plant (Phyllanthus) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021
 Underside of chamberbitter plant (Phyllanthus) with tiny fruits at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021
 Fluffy seeds of a plant of aster family on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Longstalked phyllanthus (Mascarene Island leaf flower, Phyllanthus tenellus) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Back lit longstalked phyllanthus (Mascarene Island leaf flower, Phyllanthus tenellus) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Some grass 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 28, 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
 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
 Butterfly pea (Centrosema virginianum) 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
 Flower of Palafoxia rosea on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Flowers of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 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
 Blooming gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 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
 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
 Virginian agave (Manfreda virginica) 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
 Snow-on-the-prairie (Euphorbia bicolor) 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
 Yellow flower of aster family 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
 Morning Glory (Ipomoea cordatotriloba) 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
 Close-up of a flower of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Chinese tallow (Sapium sebiferum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Green katidid on bluestem grass 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
 Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Blue waterleaf (Hydrolea ovata) 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 7, 2021
 Flower of butterfly pea (Centrosema virginianum) 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
 Underside of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Barometer earthstar mushroom (Astraeus hygrometricus)(?) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Croton glandulosus with tiny white flowers on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Close-up of blazing star (Liatris, gayfeather) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Late-flowering boneset (Eupatorium serotinum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Snow-on-the-prairie (Euphorbia bicolor) with flowers on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Berries of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Mistflower (Eupatorium coelestinum, Wild ageratum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blooming blazing star (Liatris, gayfeather) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Flower of blazing star (Liatris, gayfeather) 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
 Elephant foot (Elephantopus carolinianus) in bloom 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
 Butterfly pea (Centrosema virginianum) and bracken fern 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 15, 2021
 Close-up of a flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Trailing fuzzy-bean (Strophostyles helvola) 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
 St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Green lynx spider on gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Late-flowering boneset (Eupatorium serotinum) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Sanguine purple coneflower (Echinacea sanguinea) 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
 Terminal flower on inflorescence of some gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Inflorescence of elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Snow-on-the-prairie (Euphorbia bicolor) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Flowers of mountain mint (Pycnanthemum tenuifolium) 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
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