![](../../pictures/archives/compress/2020/2742/jpeg/23t.jpg) Flowers of Zizotes milkweed (Hierba de Zizotes, Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
![](../../pictures/archives/compress/2020/2742/jpeg/24t.jpg) Blooming Zizotes milkweed (Hierba de Zizotes, Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
![](../../pictures/archives/compress/2020/2742/jpeg/20t.jpg) Zizotes milkweed (Hierba de Zizotes, Asclepias oenotheroides) with oleander aphids in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2020
![](../../pictures/archives/compress/2008/657/jpeg/15t.jpg) Inflorescence of Zizotes milkweed (Hierba de Zizotes, Asclepias oenotheroides) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2014/1454/jpeg/20t.jpg) Zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014
![](../../pictures/archives/compress/2008/657/jpeg/12t.jpg) Zizotes milkweed (Asclepias oenotheroides) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/657/jpeg/14t.jpg) Green flowers of Zizotes milkweed (Asclepias oenotheroides) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2022/3156/jpeg/20t.jpg) Zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
![](../../pictures/archives/compress/2022/3156/jpeg/21t.jpg) Flowers of zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
![](../../pictures/archives/compress/2019/2565/jpeg/13t.jpg) Zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
![](../../pictures/archives/compress/2019/2565/jpeg/14t.jpg) Flowers of Zizotes milkweed (Asclepias oenotheroides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019
![](../../pictures/archives/compress/2020/2736/jpeg/18t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
![](../../pictures/archives/compress/2021/2998/jpeg/02t.jpg) Zizotes milkweed (Asclepias oenotheroides) in Wolf Pen Creek Park. College Station, Texas, August 2, 2021
![](../../pictures/archives/compress/2020/2703/jpeg/08t.jpg) Nymphs of red milkweed bugs on green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
![](../../pictures/archives/compress/2020/2712/jpeg/17t.jpg) Milkweed bugs on seed pods of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2020
![](../../pictures/archives/compress/2020/2712/jpeg/14t.jpg) Seed pods of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2020
![](../../pictures/archives/compress/2014/1454/jpeg/17t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014
![](../../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/2020/2803/jpeg/10t.jpg) Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
![](../../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/2020/2675/jpeg/17t.jpg) Green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../pictures/archives/compress/2020/2698/jpeg/16t.jpg) Flowers of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2012/1074/jpeg/26t.jpg) Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
![](../../pictures/archives/compress/2020/2675/jpeg/24t.jpg) Green milkweed (Asclepias viridis) in bloom on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../pictures/archives/compress/2020/2698/jpeg/15t.jpg) Seed pods of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
![](../../pictures/archives/compress/2020/2675/jpeg/19t.jpg) Flowers of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../pictures/archives/compress/2020/2675/jpeg/18t.jpg) Blooming green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../pictures/archives/compress/2014/1466/jpeg/10t.jpg) Fruits of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
![](../../pictures/archives/compress/2012/1075/jpeg/04t.jpg) Green milkweed (Antelope horns, asclepias viridis) with aphids in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
![](../../pictures/archives/compress/2012/1075/jpeg/02t.jpg) Inflorescence of green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
![](../../pictures/archives/compress/2010/858/jpeg/12t.jpg) Large milkweed bug (Oncopeltus fasciatus) on Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
![](../../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/2020/2675/jpeg/21t.jpg) Flower heads of green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../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
![](../../pictures/archives/compress/2008/657/jpeg/09t.jpg) Green milkweed (Antelope horns, asclepias viridis) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2008/631/jpeg/12t.jpg) Large Milkweed Bug (Oncopeltus fasciatus) on Green milkweed (Asclepias viridis) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
![](../../pictures/archives/compress/2020/2675/jpeg/22t.jpg) Monarch caterpillars feeding on green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
![](../../pictures/archives/compress/2013/1290/jpeg/06t.jpg) Green milkweed (Asclepias viridis) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2013
![](../../pictures/archives/compress/2021/2907/jpeg/26t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2889/jpeg/03t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
![](../../pictures/archives/compress/2013/1290/jpeg/24t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 25, 2013
![](../../pictures/archives/compress/2022/3133/jpeg/11t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
![](../../pictures/archives/compress/2014/1446/jpeg/07t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
![](../../pictures/archives/compress/2023/3382/jpeg/21t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2023
![](../../pictures/archives/compress/2021/3003/jpeg/06t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2021
![](../../pictures/archives/compress/2010/854/jpeg/22t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
![](../../pictures/archives/compress/2010/856/jpeg/20t.jpg) Assassin bug (Apiomerus) on green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
![](../../pictures/archives/compress/2021/3013/jpeg/08t.jpg) Green milkweed (Asclepias viridis) with a bumblebee in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
![](../../pictures/archives/compress/2021/2889/jpeg/04t.jpg) Blooming green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
![](../../pictures/archives/compress/2022/3133/jpeg/15t.jpg) Flowers of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
![](../../pictures/archives/compress/2009/730/jpeg/02t.jpg) Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, April 4, 2009
![](../../pictures/archives/compress/2008/651/jpeg/13t.jpg) Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
![](../../pictures/archives/compress/2022/3133/jpeg/12t.jpg) Flower head of green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
![](../../pictures/archives/compress/2008/627/jpeg/13t.jpg) Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2022/3252/jpeg/04t.jpg) Green milkweed (Antelope horns, asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022
![](../../pictures/archives/compress/2010/868/jpeg/09t.jpg) Milkweed (Asclepias), opened seedpod with seeds and fluff emerging, in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
![](../../pictures/archives/compress/2021/2908/jpeg/17t.jpg) Blooming milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/01t.jpg) Green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/18t.jpg) Inflorescence of milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/16t.jpg) Green flowers of milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/09t.jpg) Green milkweed (Asclepias viridis) in a field on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/3013/jpeg/09t.jpg) Fruit of green milkweed (Asclepias viridis) with aphids Aphis nerii in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/19t.jpg) Green inflorescence of milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/02t.jpg) Flowers 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/2021/2908/jpeg/08t.jpg) Blooming green milkweed (Asclepias viridis) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/07t.jpg) Inflorescence 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/2008/627/jpeg/15t.jpg) Opening flowers of Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
![](../../pictures/archives/compress/2021/2908/jpeg/15t.jpg) Green milkweed (Asclepias viridis) in bloom on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/20t.jpg) Cluster of green flowers of milkweed Asclepias viridis on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/21t.jpg) Masses of flowers 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/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/2021/2908/jpeg/06t.jpg) Close-up of flowers 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/2021/2908/jpeg/12t.jpg) Green milkweed (Asclepias viridis) in a field of grass on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
![](../../pictures/archives/compress/2021/2908/jpeg/10t.jpg) 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
![](../../pictures/archives/compress/2021/2908/jpeg/14t.jpg) 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
![](../../pictures/archives/compress/2021/2908/jpeg/11t.jpg) Cluster of 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
![](../../pictures/archives/compress/2020/2736/jpeg/27t.jpg) White dayflower (Commelina) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
![](../../pictures/archives/compress/2008/663/jpeg/18t.jpg) Dehisced seedpod releasing seeds, with attached coma (tuft of fluff) of milkweed (Asclepias) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
![](../../pictures/archives/compress/2008/625/jpeg/03t.jpg) Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
![](../../pictures/archives/compress/2008/625/jpeg/04t.jpg) Opening flower of Antelope horns milkweed (Asclepias viridis) in Washington-on-the-Brazos Historic Site, near Loop trail. Washington, Texas, March 30, 2008
![](../../pictures/archives/compress/2011/975/jpeg/20t.jpg) Milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
![](../../pictures/archives/compress/2011/975/jpeg/21t.jpg) Tuft of fluff of milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
![](../../pictures/archives/compress/2008/648/jpeg/12t.jpg) Nymph of large milkweed bug (Oncopeltus fasciatus) on milkweed seeds in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
![](../../pictures/archives/compress/2008/657/jpeg/10t.jpg) Immature katydid on green milkweed near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2008
![](../../pictures/archives/compress/2020/2747/jpeg/16t.jpg) Green carpetweed (Mollugo verticillata) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
![](../../pictures/archives/compress/2020/2642/jpeg/10t.jpg) Big sheath mushroom (Volvopluteus gloiocephalus) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
![](../../pictures/archives/compress/2020/2642/jpeg/12t.jpg) Dissected big sheath mushroom (Volvopluteus gloiocephalus) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
![](../../pictures/archives/compress/2020/2747/jpeg/14t.jpg) Frog fruit (Phyla incisa, Lippia) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
![](../../pictures/archives/compress/2020/2642/jpeg/11t.jpg) Side view of big sheath mushroom (Volvopluteus gloiocephalus) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
![](../../pictures/archives/compress/2020/2630/jpeg/21t.jpg) Blue flowers of spiderwort (Tradescantia) on a lawn near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2020/2747/jpeg/15t.jpg) Bahia grass (Paspalum notatum) with black anthers on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
![](../../pictures/archives/compress/2020/2766/jpeg/24t.jpg) Bolete mushrooms Boletus luridellus with Hypomyces on a grassy lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
![](../../pictures/archives/compress/2020/2631/jpeg/01t.jpg) Hatching star eathball mushrooms (Scleroderma polyrhizum) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2020/2630/jpeg/26t.jpg) Star eathball mushrooms (Scleroderma polyrhizum) on a lawn near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2020/2630/jpeg/22t.jpg) Spring pinkgill mushrooms (Entoloma vernum ) on a lawn near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2020/2630/jpeg/25t.jpg) Elegant stinkhorn mushroom (Mutinus elegans) on a lawn near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2020/2793/jpeg/01t.jpg) Overflowing slimy stem mushrooms (Limacella illinita, Zhuliangomyces illinitus) on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
![](../../pictures/archives/compress/2020/2766/jpeg/25t.jpg) Bolete mushrooms Boletus luridellus and their cross section with Hypomyces on a grassy lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
![](../../pictures/archives/compress/2020/2793/jpeg/02t.jpg) Overflowing slimy stem mushrooms (Limacella illinita, Zhuliangomyces illinitus) in grass on a lawn in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
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