![](../../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/2014/1411/jpeg/18t.jpg) Orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1410/jpeg/10t.jpg) Orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1411/jpeg/20t.jpg) Blooming orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1411/jpeg/19t.jpg) Flowers of orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2010/857/jpeg/22t.jpg) Orange milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
![](../../pictures/archives/compress/2020/2705/jpeg/08t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
![](../../pictures/archives/compress/2024/3523/jpeg/36t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
![](../../pictures/archives/compress/2022/3152/jpeg/19t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 14, 2022
![](../../pictures/archives/compress/2020/2705/jpeg/07t.jpg) Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
![](../../pictures/archives/compress/2022/3233/jpeg/13t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
![](../../pictures/archives/compress/2024/3518/jpeg/15t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
![](../../pictures/archives/compress/2021/2951/jpeg/19t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
![](../../pictures/archives/compress/2020/2695/jpeg/05t.jpg) Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
![](../../pictures/archives/compress/2020/2705/jpeg/09t.jpg) Blooming orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
![](../../pictures/archives/compress/2022/3152/jpeg/20t.jpg) Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 14, 2022
![](../../pictures/archives/compress/2020/2695/jpeg/06t.jpg) Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
![](../../pictures/archives/compress/2020/2695/jpeg/07t.jpg) Orange milkweed (Asclepias tuberosa) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
![](../../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/2019/2578/jpeg/07t.jpg) Seed head of red milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 19, 2019
![](../../pictures/archives/compress/2019/2578/jpeg/06t.jpg) Fluffy seeds of red milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 19, 2019
![](../../pictures/archives/compress/2024/3623/jpeg/16t.jpg) Orange milkweed (Asclepias tuberosa) 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/2024/3510/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/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/2008/653/jpeg/19t.jpg) Orange milkweed (asclepias) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 22, 2008
![](../../pictures/archives/compress/2012/1063/jpeg/15t.jpg) Whorled milkweed (Asclepias verticillata(?)) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
![](../../pictures/archives/compress/2023/3378/jpeg/17t.jpg) Flower buds of white milkweed (Asclepias variegata) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 9, 2023
![](../../pictures/archives/compress/2024/3513/jpeg/23t.jpg) Flower buds of redring Milkweed (Asclepias variegata) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
![](../../pictures/archives/compress/2010/857/jpeg/20t.jpg) Opening flowers of white milkweed (Asclepias variegata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
![](../../pictures/archives/compress/2010/857/jpeg/23t.jpg) White-flowered milkweed (Asclepias variegata) with black moths on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
![](../../pictures/archives/compress/2010/857/jpeg/19t.jpg) White-flowered milkweed (Asclepias variegata) with a longhorn beetle on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
![](../../pictures/archives/compress/2014/1468/jpeg/18t.jpg) Flower buds of green milkweed (Asclepias obovata(?)) taken from Lick Creek Park. College Station, Texas, July 29, 2014
![](../../pictures/archives/compress/2018/2260/jpeg/24t.jpg) Orange milkweed (Asclepias tuberosa) in Lake Bryan Park. Bryan, Texas, May 16, 2018
![](../../pictures/archives/compress/2020/2696/jpeg/12t.jpg) Orange milkweed (Asclepias tuberosa) in Lake Bryan Park. Bryan, Texas, May 1, 2020
![](../../pictures/archives/compress/2010/862/jpeg/16t.jpg) Orange milkweed (Asclepias tuberosa) in Lake Bryan Park. Bryan, Texas, May 21, 2010
![](../../pictures/archives/compress/2011/976/jpeg/23t.jpg) Orange milkweed (Asclepias tuberosa) in Lake Bryan Park. Bryan, Texas, July 26, 2011
![](../../pictures/archives/compress/2010/862/jpeg/17t.jpg) Orange milkweed (Asclepias tuberosa) in bloom in Lake Bryan Park. Bryan, Texas, May 21, 2010
![](../../pictures/archives/compress/2014/1461/jpeg/21t.jpg) Flower buds of Shore milkweed (Asclepias perennis) near a cypress pond in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014
![](../../pictures/archives/compress/2009/786/jpeg/18t.jpg) Orange milkweed (Asclepias tuberosa) in Antique Rose Emporium. Independence, Texas, August 15, 2009
![](../../pictures/archives/compress/2020/2795/jpeg/28t.jpg) Seed pod of white-flowered milkweed (Asclepias variegata) or may be A. tuberosa 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/2024/3502/jpeg/13t.jpg) Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
![](../../pictures/archives/compress/2023/3366/jpeg/16t.jpg) Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
![](../../pictures/archives/compress/2024/3510/jpeg/16t.jpg) Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
![](../../pictures/archives/compress/2022/3136/jpeg/04t.jpg) Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
![](../../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/2020/2795/jpeg/30t.jpg) "Exploding" seeds of white-flowered milkweed (Asclepias variegata) or may be A. tuberosa 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/2020/2795/jpeg/29t.jpg) Fluffy seeds of white-flowered milkweed (Asclepias variegata) or may be A. tuberosa 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/2020/2681/jpeg/09t.jpg) White-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020
![](../../pictures/archives/compress/2020/2690/jpeg/07t.jpg) White-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
![](../../pictures/archives/compress/2020/2690/jpeg/06t.jpg) Close-up of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
![](../../pictures/archives/compress/2024/3510/jpeg/15t.jpg) Opening flowers of green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
![](../../pictures/archives/compress/2020/2681/jpeg/16t.jpg) White-flowered milkweed (Asclepias variegata) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020
![](../../pictures/archives/compress/2022/3136/jpeg/08t.jpg) White-flowered milkweed (Asclepias variegata) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
![](../../pictures/archives/compress/2021/2908/jpeg/22t.jpg) Flower buds of green milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2024/3607/jpeg/24t.jpg) Zizotes milkweed (Asclepias oenotheroides) 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, August 24, 2024
![](../../pictures/archives/compress/2022/3184/jpeg/29t.jpg) Flower spike of Little Ladies Tresses (Spiranthes tuberosa var. gracilis) on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
![](../../pictures/archives/compress/2024/3607/jpeg/25t.jpg) Blooming Zizotes milkweed (Asclepias oenotheroides) 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, August 24, 2024
![](../../pictures/archives/compress/2024/3607/jpeg/26t.jpg) Green flowers of Zizotes milkweed (Asclepias oenotheroides) 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, August 24, 2024
![](../../pictures/archives/compress/2013/1236/jpeg/06t.jpg) Flower buds of green milkweed (Asclepias obovata(?)) in Lick Creek Park. College Station, Texas, August 6, 2013
![](../../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/2014/1410/jpeg/16t.jpg) Winecup flower (Callirhoe) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1411/jpeg/02t.jpg) Winecup flower (Callirhoe) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1468/jpeg/21t.jpg) Buds of green milkweed (Asclepias obovata(?)) taken from Lick Creek Park. College Station, Texas, July 29, 2014
![](../../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/2020/2739/jpeg/23t.jpg) Flower buds of green milkweed (Asclepias obovata(?)) with mikweed bugs in Lick Creek Park. College Station, Texas, July 18, 2020
![](../../pictures/archives/compress/2014/1411/jpeg/03t.jpg) Close up of Winecup flower (Callirhoe) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 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/2014/1410/jpeg/08t.jpg) Hairy flower of Spiderwort (Tradescantia) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1410/jpeg/07t.jpg) Blue flower of dayflower (Commelina) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1410/jpeg/05t.jpg) Blue flower of Spiderwort (Tradescantia) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../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/2014/1411/jpeg/15t.jpg) Pencil flower (Stylosanthes biflora) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../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/2020/2683/jpeg/25t.jpg) White-flowered milkweed (Asclepias variegata) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020
![](../../pictures/archives/compress/2023/3396/jpeg/19t.jpg) White-flowered milkweed (Asclepias variegata) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 28, 2023
![](../../pictures/archives/compress/2014/1410/jpeg/18t.jpg) Flower of violet ruella (Ruellia nudiflora) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../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/2014/1411/jpeg/10t.jpg) Sidebeak pencil flower (Stylosanthes biflora) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
![](../../pictures/archives/compress/2014/1410/jpeg/19t.jpg) Pink powderpuff flower (Mimosa strigillosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 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/2009/700/jpeg/03t.jpg) Red milkweed (Asclepias tuberosa) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
![](../../pictures/archives/compress/2020/2743/jpeg/29t.jpg) Flower buds of mountain mint (Pycnanthemum tenuifolium) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2020/2744/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/2014/1456/jpeg/12t.jpg) Flower of Maryland meadow-beauty (Rhexia mariana) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2009/700/jpeg/10t.jpg) Red milkweed flowers (Asclepias tuberosa) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
![](../../pictures/archives/compress/2012/1069/jpeg/13t.jpg) Red milkweed (Asclepias tuberosa) in Lake Bryan Park. Bryan, Texas, June 13, 2012
![](../../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/2024/3513/jpeg/22t.jpg) Redring Milkweed (Asclepias variegata) with a flower longhorn beetle Leptura annularis on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 17, 2024
![](../../pictures/archives/compress/2021/3000/jpeg/27t.jpg) Flower buds of crane-fly orchid (Tipularia discolor) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2021
![](../../pictures/archives/compress/2008/670/jpeg/13t.jpg) Flower buds of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
![](../../pictures/archives/compress/2022/3205/jpeg/27t.jpg) Brown shoots with flower buds of crippled crane-fly orchid (Tipularia discolor) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 6, 2022
![](../../pictures/archives/compress/2014/1456/jpeg/03t.jpg) Flower of purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2014/1455/jpeg/22t.jpg) Flower of Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2022/3142/jpeg/25t.jpg) White-flowered milkweed (Asclepias variegata) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, April 30, 2022
![](../../pictures/archives/compress/2012/1070/jpeg/06t.jpg) Red milkweed (Asclepias tuberosa) near Lost Pines Trail in Bastrop State Park. Bastrop, Texas, June 16, 2012
![](../../pictures/archives/compress/2014/1455/jpeg/23t.jpg) Central area of a flower of Purple pleat-leaf (Pinewood lily, Alophia drummondii, Eustylis purpurea) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
![](../../pictures/archives/compress/2012/1075/jpeg/01t.jpg) Flower buds of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
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