![](../../pictures/archives/compress/2020/2744/jpeg/25t.jpg) Flower buds of mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/13t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/30t.jpg) Blooming mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2021/2994/jpeg/06t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2022/3194/jpeg/01t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022
![](../../pictures/archives/compress/2021/3008/jpeg/09t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
![](../../pictures/archives/compress/2022/3253/jpeg/06t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, October 1, 2022
![](../../pictures/archives/compress/2021/3001/jpeg/01t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2024/3607/jpeg/17t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 24, 2024
![](../../pictures/archives/compress/2021/3001/jpeg/16t.jpg) Flowers of mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
![](../../pictures/archives/compress/2024/3623/jpeg/20t.jpg) Mountain mint (Pycnanthemum tenuifolium) 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
![](../../pictures/archives/compress/2024/3615/jpeg/11t.jpg) Blooming mountain mint (Pycnanthemum tenuifolium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
![](../../pictures/archives/compress/2024/3615/jpeg/10t.jpg) Mountain mint (Pycnanthemum tenuifolium) 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 near Montgomery. Texas, September 6, 2024
![](../../pictures/archives/compress/2019/2559/jpeg/05t.jpg) Mountain mint (Pycnanthemum tenuifolium) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
![](../../pictures/archives/compress/2019/2559/jpeg/29t.jpg) Flowers of mountain mint (Pycnanthemum tenuifolium) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019
![](../../pictures/archives/compress/2024/3510/jpeg/14t.jpg) Mountain mint (Pycnanthemum)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
![](../../pictures/archives/compress/2008/664/jpeg/24t.jpg) Mountain mint (Pycnanthemum) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
![](../../pictures/archives/compress/2014/1472/jpeg/21t.jpg) Narrowleaf mountain mint (Pycnanthemum tenuifolium) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
![](../../pictures/archives/compress/2022/3256/jpeg/23t.jpg) Mountain mint (Pycnanthemum tenuifolium) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, October 6, 2022
![](../../pictures/archives/compress/2014/1473/jpeg/05t.jpg) Mountain mint (Pycnanthemum) on Kirby Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
![](../../pictures/archives/compress/2014/1473/jpeg/06t.jpg) Tachinid(?) fly on Mountain mint (Pycnanthemum) on Kirby Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014
![](../../pictures/archives/compress/2023/3367/jpeg/17t.jpg) Red leaves and flower buds of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2024/3510/jpeg/35t.jpg) Flower buds of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
![](../../pictures/archives/compress/2020/2744/jpeg/05t.jpg) Gayfeather (Liatris) flower on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2022/3136/jpeg/01t.jpg) Flower buds of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
![](../../pictures/archives/compress/2014/1410/jpeg/11t.jpg) Flower buds of orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2024/3510/jpeg/09t.jpg) Flower buds of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
![](../../pictures/archives/compress/2010/857/jpeg/17t.jpg) Flower buds of White-flowered milkweed (Asclepias variegata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
![](../../pictures/archives/compress/2008/664/jpeg/08t.jpg) Flower buds of blazing star (Liatris, gayfeather) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
![](../../pictures/archives/compress/2020/2744/jpeg/07t.jpg) Flower of hairy wild petunia (Ruellia humilis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/20t.jpg) St. Andrew cross flower (Hypericum, Ascyrum hypericoides) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/26t.jpg) Blooming st. Andrew cross flower (Hypericum, Ascyrum hypericoides) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/28t.jpg) 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
![](../../pictures/archives/compress/2020/2744/jpeg/27t.jpg) Yellow flower of St. Peter s-wort (Hypericum crux-andreae) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2022/3175/jpeg/14t.jpg) Narrowleaf, or slender mountainmint (Pycnanthemum tenuifolium) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, June 12, 2022
![](../../pictures/archives/compress/2022/3175/jpeg/15t.jpg) White flowers of narrowleaf, or slender mountainmint (Pycnanthemum tenuifolium) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, June 12, 2022
![](../../pictures/archives/compress/2008/659/jpeg/24t.jpg) 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
![](../../pictures/archives/compress/2020/2667/jpeg/13t.jpg) Flower of blackberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
![](../../pictures/archives/compress/2020/2733/jpeg/23t.jpg) Pencil flower (Stylosanthes biflora) on Richards Loop Trail in Sam Houston National Forest. Texas, June 27, 2020
![](../../pictures/archives/compress/2020/2705/jpeg/04t.jpg) Flower of sensitive brier (Schrankia uncinata)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
![](../../pictures/archives/compress/2009/785/jpeg/13t.jpg) Flower buds in Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, August 9, 2009
![](../../pictures/archives/compress/2014/1456/jpeg/06t.jpg) Commelina flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2014/1456/jpeg/05t.jpg) Ruellia flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2020/2695/jpeg/04t.jpg) Macartney rose (Rosa bracteata) with flower beetles on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
![](../../pictures/archives/compress/2013/1227/jpeg/18t.jpg) Winecup flower (Callirhoe) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 7, 2013
![](../../pictures/archives/compress/2014/1456/jpeg/19t.jpg) Flower of Ruellia nudiflora on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2014/1456/jpeg/01t.jpg) Blue flower of Commelina on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2021/2994/jpeg/14t.jpg) Close-up of a flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2021/2994/jpeg/21t.jpg) Back lit flower of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2014/1456/jpeg/08t.jpg) Blue flower of Commelina on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2021/2994/jpeg/29t.jpg) Flower of elephant foot (Elephantopus carolinianus) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2020/2666/jpeg/01t.jpg) Flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/05t.jpg) Dayflower (Commelina) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/36t.jpg) Croton glandulosus on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/24t.jpg) Little bluestem(?) grass on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/23t.jpg) Some green shoot on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2021/2994/jpeg/30t.jpg) Tiny flower of buttonweed (Poor-Joe, Diodia teres) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2021/2994/jpeg/12t.jpg) Flower of shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2014/1455/jpeg/17t.jpg) Flower of Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2021/2894/jpeg/26t.jpg) Flower buds of woolly-white (Hymenopappus) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
![](../../pictures/archives/compress/2022/3142/jpeg/07t.jpg) Flower buds of coralbean (Erythrina herbacea) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, April 30, 2022
![](../../pictures/archives/compress/2020/2795/jpeg/26t.jpg) Flower buds of goldenrod (Solidago) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
![](../../pictures/archives/compress/2020/2819/jpeg/05t.jpg) Yellow leaf of passion flower (Passiflora lutea) on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 20, 2020
![](../../pictures/archives/compress/2020/2810/jpeg/04t.jpg) Flower spike of nodding ladies-tresses orchid (Spiranthes cernua) on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
![](../../pictures/archives/compress/2020/2667/jpeg/02t.jpg) Yellow flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
![](../../pictures/archives/compress/2020/2803/jpeg/21t.jpg) Flower spike of nodding ladies-tresses orchid (Spiranthes cernua) on Richards Loop Trail in Sam Houston National Forest. Texas, October 22, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/33t.jpg) Beautyberry (Callicarpa americana) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/31t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/01t.jpg) Butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/04t.jpg) Close-up of dayflower (Commelina) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/24t.jpg) Foxtail like grass (Setaria) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/08t.jpg) Dandelion like seed head on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/03t.jpg) Distorted growth of oak leaves on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/13t.jpg) Tendrils of greenbrier (Smilax) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2013/1227/jpeg/17t.jpg) Pink powderpuff flower (Mimosa strigillosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 7, 2013
![](../../pictures/archives/compress/2013/1227/jpeg/09t.jpg) Back lit flower of Butterfly pea (Centrosema virginianum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 7, 2013
![](../../pictures/archives/compress/2008/659/jpeg/25t.jpg) Green passion flower (Passiflora lutea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
![](../../pictures/archives/compress/2021/2994/jpeg/20t.jpg) Close-up of a flower of shrubby water-primrose (Ludwigia octovalvis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2008/659/jpeg/22t.jpg) Western ironweed (Vernonia baldwini) flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
![](../../pictures/archives/compress/2009/714/jpeg/14t.jpg) Flower buds of Carolina jessamine (Gelsemium sempervirens) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
![](../../pictures/archives/compress/2008/664/jpeg/16t.jpg) Buds of elephant foot (Elephantopus carolinianus) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
![](../../pictures/archives/compress/2020/2744/jpeg/19t.jpg) Fieldcap mushrooms Agrocybe retigera taken from grass near the trail on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/25t.jpg) Blooming butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/18t.jpg) Close-up of flowers of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/17t.jpg) Shoot of farkleberry (Vaccinium arboreum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/06t.jpg) Southern dawnflower (Stylisma humistrata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/15t.jpg) Bolete mushroom Boletus patrioticus on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/10t.jpg) Purple pleatleaf (Alophia drummondii) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/30t.jpg) Tiny yellow flowers of Hypericum(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/27t.jpg) Back lit butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/06t.jpg) Dry handeless coneflower (Echinacea sanguinea) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/35t.jpg) Slender woodoats (Chasmanthium laxum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/03t.jpg) Purple bindweed (Ipomoea cordatotriloba) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2744/jpeg/29t.jpg) Tall goldenrod (Solidago altissima) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2743/jpeg/34t.jpg) Southern wax myrtle (Myrica cerifera) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/02t.jpg) Close-up of butterfly pea (Centrosema virginianum) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2020/2738/jpeg/16t.jpg) Dayflower (Commelina) with blue flowers on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
![](../../pictures/archives/compress/2008/659/jpeg/26t.jpg) Yellow and green passion flower (Passiflora lutea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
![](../../pictures/archives/compress/2008/659/jpeg/23t.jpg) St. Andrew cross (Ascyrum hypericoides, Hypericum) flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
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