 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
 Flower buds of White-flowered milkweed (Asclepias variegata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 White-flowered milkweed (Asclepias variegata) with black moths on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Opening flowers of white-flowered milkweed (Asclepias variegata) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 27, 2022
 White-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
 White-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020
 Opening flowers of White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Close-up of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
 White-flowered milkweed (Asclepias variegata) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020
 Flower buds of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Flower buds of white-flowered milkweed (Asclepias variegata) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
 Opening flowers of green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 White-flowered milkweed (Asclepias variegata) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
 White-flowered milkweed (Asclepias variegata) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020
 White-flowered milkweed (Asclepias variegata) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 28, 2023
 Flowers 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
 Bronze beetles on flowers of white-flowered milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, April 25, 2024
 White-flowered milkweed (Asclepias variegata) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, April 30, 2022
 Orange milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Flowers of orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 White milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, April 14, 2023
 White-flowered milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, April 25, 2024
 Blooming 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
 Seed pods of white-flowered milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, October 6, 2022
 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
 Tips of seed pods of white-flowered milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, October 6, 2022
 Close-up of seed pods of white-flowered milkweed (Asclepias variegata) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, October 6, 2022
 White-flowered milkweed (Asclepias variegata) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 27, 2022
 Flowers of White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 14, 2022
 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
 Orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 Orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 Whorled milkweed (Asclepias verticillata(?)) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Orange milkweed (asclepias) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 22, 2008
 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
 "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
 Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Blooming orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 Fluffy seeds of red milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 19, 2019
 Seed head of red milkweed (Asclepias tuberosa) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 19, 2019
 Flower buds of orange milkweed (Asclepias tuberosa) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
 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
 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
 White-flowered milkweed (Asclepias variegata) in Big Thicket park on Kirby Trail. Texas, April 26, 2008
 White-flowered milkweed (Asclepias variegata) in Big Thicket park on Kirby Trail. Texas, April 26, 2008
 Opening flowers of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Blooming White-flowered milkweed (Asclepias variegata) in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 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
 Opening flowers of Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
 White-flowered milkweed (Asclepias variegata) damaged by ants in Big Thicket park, on Kirby Trail. Texas, April 25, 2009
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 14, 2022
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Opening flowers of green milkweed (Asclepias viridis) in a field on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
 Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Green milkweed (Asclepias viridis) 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, April 21, 2022
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Green milkweed (Asclepias viridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Blooming orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2024
 Orange milkweed (Asclepias tuberosa) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
 Flower buds of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 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
 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
 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
 Opening flowers of woolly-white (Hymenopappus) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Flowers of purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 White flowers of aquatic milkweed Asclepias perennis growing in a dry creek bed on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022
 Opening flower of blue waterleaf (Hydrolea ovata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 White flowers of spurge Euphorbia corollata on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 21, 2019
 Opening flower of Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
 Flowers of green milkweed (Asclepias viridis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Close-up of flowers of green milkweed (Asclepias viridis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2024
 Tiny white flowers of rustweed (juniper leaf, Polypremum procumbens) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
 Small white tubular unopened flowers of nodding beardtongue (Penstemon laxiflorus or australis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
 Partridge berry with white flowers and a last year fruit on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023
 Damselfly near a creek on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Head of grasshopper in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Brown anole lizard in Sam Houston National Forest on Little Lake Creek Loop Trail. Richards, Texas, April 4, 2010.
 Flower of Palafoxia rosea in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Sidebeak pencilflower (Stylosanthes biflora) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Catkins in a creek crossing of Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, April 4, 2010.
 White flowers of blackberry on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 White aster flowers on Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
 Purple dewdrop (Lobelia puberula) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Sidebeak pencil flower (Stylosanthes biflora) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 8, 2010
 Flowering spurge Euphorbia corollata in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Yellow flower of aster family in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Pink fuzzybean (Strophostyles umbellata) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 Bastard pennyroyal (Trichostema dichotomum) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 2, 2010
 White flowers of blackberry on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flowers of woolly-white (Hymenopappus) on Richards Loop Trail in Sam Houston National Forest. Texas, April 21, 2022
 Flowers of woolly-white (Hymenopappus artemisiaefolius) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 White swamp (aquatic) milkweed (Asclepias perennis) in a dry creek bed on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022
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