![](../../pictures/archives/compress/2021/2916/jpeg/20t.jpg) Canadian black snakeroot (Sanicula canadensis) in Lick Creek Park. College Station, Texas, April 22, 2021
![](../../pictures/archives/compress/2019/2482/jpeg/27t.jpg) Leaves of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, April 16, 2019
![](../../pictures/archives/compress/2022/3131/jpeg/22t.jpg) Leaves of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2022
![](../../pictures/archives/compress/2022/3186/jpeg/05t.jpg) Prickly seeds with hooks of Canadian black snakeroot (Sanicula canadensis) in Antique Rose Emporium. Independence, Texas, July 2, 2022
![](../../pictures/archives/compress/2020/2744/jpeg/11t.jpg) Bur-like seed capsules with hooks of Canadian black snakeroot (Sanicula canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
![](../../pictures/archives/compress/2022/3131/jpeg/28t.jpg) Shoots of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2022
![](../../pictures/archives/compress/2022/3184/jpeg/12t.jpg) Green seeds with hooks of black snakeroot (Sanicula marilandica) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
![](../../pictures/archives/compress/2010/866/jpeg/16t.jpg) Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 4, 2010
![](../../pictures/archives/compress/2014/1448/jpeg/07t.jpg) Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
![](../../pictures/archives/compress/2019/2525/jpeg/11t.jpg) Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
![](../../pictures/archives/compress/2014/1452/jpeg/17t.jpg) Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
![](../../pictures/archives/compress/2014/1453/jpeg/02t.jpg) Flowers of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
![](../../pictures/archives/compress/2010/865/jpeg/22t.jpg) Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) with a butterfly in dew in Lick Creek Park. College Station, Texas, June 1, 2010
![](../../pictures/archives/compress/2014/1448/jpeg/15t.jpg) Close up of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
![](../../pictures/archives/compress/2008/652/jpeg/01t.jpg) Spiny flowerhead of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, June 15, 2008
![](../../pictures/archives/compress/2019/2525/jpeg/09t.jpg) Spiny flowerhead of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
![](../../pictures/archives/compress/2012/1110/jpeg/21t.jpg) Dry seed heads of Button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, October 11, 2012
![](../../pictures/archives/compress/2014/1448/jpeg/10t.jpg) Flower heads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 1, 2014
![](../../pictures/archives/compress/2019/2525/jpeg/10t.jpg) Flower heads in umbels of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 9, 2019
![](../../pictures/archives/compress/2012/1061/jpeg/21t.jpg) Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, May 22, 2012
![](../../pictures/archives/compress/2022/3176/jpeg/18t.jpg) Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 13, 2022
![](../../pictures/archives/compress/2008/650/jpeg/22t.jpg) Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) near Deer Run Trail in Lick Creek Park. College Station, Texas, June 8, 2008
![](../../pictures/archives/compress/2013/1227/jpeg/01t.jpg) Spiny button-like flowerheads of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) near Deer Run Trail in Lick Creek Park. College Station, Texas, July 4, 2013
![](../../pictures/archives/compress/2023/3365/jpeg/15t.jpg) Young leaves of black cherry in Lick Creek Park. College Station, Texas, March 16, 2023
![](../../pictures/archives/compress/2023/3361/jpeg/27t.jpg) Young leaves of black cherry in Lick Creek Park. College Station, Texas, March 10, 2023
![](../../pictures/archives/compress/2008/652/jpeg/11t.jpg) Spiny button-like flower heads in umbels of button snakeroot (yuccaleaf snakeroot, Eryngium yuccifolium) in Lick Creek park, on Deer Run Trail. College Station, June 15, 2008
![](../../pictures/archives/compress/2024/3485/jpeg/07t.jpg) Young oak leaves in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/16t.jpg) Back lit leaves of elm in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/13t.jpg) Young leaves of elm in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/25t.jpg) Young narrow leaves of an oak in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/19t.jpg) Young leaves on elm tree in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3505/jpeg/22t.jpg) Young red leaves of blackjack oak in Lick Creek Park. College Station, Texas, March 31, 2024
![](../../pictures/archives/compress/2024/3632/jpeg/08t.jpg) White mistflower (Havana snakeroot, Ageratina havanensis, Eupatorium havanense) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 16, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/10t.jpg) Leaves of farkleberry (Vaccinium arboreum) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/09t.jpg) Brown skipper(?) butterfly on leaves of oak in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3500/jpeg/15t.jpg) Young leaves of flameleaf sumac in Lick Creek Park. College Station, Texas, March 28, 2024
![](../../pictures/archives/compress/2024/3500/jpeg/09t.jpg) Young leaves of sycamore tree in Lick Creek Park. College Station, Texas, March 28, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/18t.jpg) Leaves of peppervine (Ampelopsis arborea) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/23t.jpg) Young leaves of hackberry tree in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/02t.jpg) Young leaves of willow oak on Post Oak Trail in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/03t.jpg) Fresh leaves of willow oak on Post Oak Trail in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/29t.jpg) Young leaves of poison ivy climbing on a tree in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3483/jpeg/23t.jpg) Reddish webcap mushrooms Cortinarius bolaris(?) on black background on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, March 9, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/30t.jpg) Young leaves of rattan vine (Berchemia scandens) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/21t.jpg) Young leaves on eastern cottonwood (Populus deltoides) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/20t.jpg) Leaves of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/08t.jpg) Young leaves of honey locust (Gleditsia triacanthos) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/01t.jpg) Fresh leaves of Mexican plum on Post Oak Trail in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2024/3485/jpeg/12t.jpg) Twig of gum Bumelia (Sideroxylon lanuginosum) with young leaves and lichens in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2014/1453/jpeg/05t.jpg) Climbing vine of Canadian moonseed (Yellow Parilla, Menispermum canadense) in Lick Creek Park. College Station, Texas, July 10, 2014
![](../../pictures/archives/compress/2023/3416/jpeg/07t.jpg) Dry leaves of black cherry(?) in Lick Creek Park. College Station, Texas, September 13, 2023
![](../../pictures/archives/compress/2024/3485/jpeg/28t.jpg) Young leaves of Devil s Walking Stick (Hercules-club, Aralia spinosa) in Lick Creek Park. College Station, Texas, March 12, 2024
![](../../pictures/archives/compress/2013/1229/jpeg/12t.jpg) Climbing vine of Canadian moonseed (Yellow Parilla, Menispermum canadense) on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
![](../../pictures/archives/compress/2022/3206/jpeg/19t.jpg) Dried curled leaves of elm and black willow in Lick Creek Park. College Station, Texas, August 7, 2022
![](../../pictures/archives/compress/2024/3482/jpeg/18t.jpg) Seedling of some dicotyledon plant narrowleaf marsh elder (Iva angustifolia) with narrow leaves on Racoon Run Trail in Lick Creek Park. College Station, Texas, March 4, 2024
![](../../pictures/archives/compress/2012/1053/jpeg/03t.jpg) Button snakeroot (Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, May 10, 2012
![](../../pictures/archives/compress/2022/3201/jpeg/24t.jpg) Brown dried leaves of black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022
![](../../pictures/archives/compress/2022/3201/jpeg/22t.jpg) Brown curled leaves of elm and black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022
![](../../pictures/archives/compress/2022/3167/jpeg/01t.jpg) Black aphids on leaves of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, June 3, 2022
![](../../pictures/archives/compress/2022/3201/jpeg/21t.jpg) Brown dried leaves of elm and black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022
![](../../pictures/archives/compress/2014/1452/jpeg/25t.jpg) Button snakeroot (Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 10, 2014
![](../../pictures/archives/compress/2024/3476/jpeg/01t.jpg) Melanoleuca mushroom with a black cap in Lick Creek Park. College Station, Texas, February 23, 2024
![](../../pictures/archives/compress/2024/3473/jpeg/10t.jpg) Red basal leaves of stemless evening primrose (Oenothera triloba) with tiny black spots of fungus Cryptostictis oenotherae (Pestalotia oenotherae)(?) on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 16, 2024
![](../../pictures/archives/compress/2024/3473/jpeg/16t.jpg) Close-up of red basal leaves of stemless evening primrose (Oenothera triloba) with tiny black spots of fungus Cryptostictis oenotherae (Pestalotia oenotherae)(?) on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 17, 2024
![](../../pictures/archives/compress/2024/3476/jpeg/02t.jpg) Underside of Melanoleuca mushroom with a black cap in Lick Creek Park. College Station, Texas, February 23, 2024
![](../../pictures/archives/compress/2024/3527/jpeg/10t.jpg) Black eye susan flowers on Post Oak Trail in Lick Creek Park. College Station, Texas, May 6, 2024
![](../../pictures/archives/compress/2024/3534/jpeg/31t.jpg) Mushrooms Clitocybula abundans on black background in Lick Creek Park. College Station, Texas, May 13, 2024
![](../../pictures/archives/compress/2024/3473/jpeg/30t.jpg) Hyphae from tiny black spots on red basal leaves of stemless evening primrose (Oenothera triloba) with fungus Cryptostictis oenotherae (Pestalotia oenotherae)(?) collected on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 17, 2024
![](../../pictures/archives/compress/2024/3473/jpeg/28t.jpg) Spores from tiny black spots on red basal leaves of stemless evening primrose (Oenothera triloba) with fungus Cryptostictis oenotherae (Pestalotia oenotherae)(?) collected on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 17, 2024
![](../../pictures/archives/compress/2024/3473/jpeg/29t.jpg) Tissues from tiny black spots on red basal leaves of stemless evening primrose (Oenothera triloba) with fungus Cryptostictis oenotherae (Pestalotia oenotherae)(?) collected on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 17, 2024
![](../../pictures/archives/compress/2018/2280/jpeg/10t.jpg) Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
![](../../pictures/archives/compress/2013/1232/jpeg/05t.jpg) Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, July 24, 2013
![](../../pictures/archives/compress/2012/1068/jpeg/18t.jpg) Button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
![](../../pictures/archives/compress/2024/3642/jpeg/08t.jpg) White Lepiota mushrooms on black background in Lick Creek Park. College Station, Texas, November 14, 2024
![](../../pictures/archives/compress/2024/3476/jpeg/17t.jpg) Black Hysteroid pyrenomycetous fungi on a log of mulberry in Lick Creek Park. College Station, Texas, February 23, 2024
![](../../pictures/archives/compress/2024/3642/jpeg/14t.jpg) Small Agaricus mushrooms on black background in Lick Creek Park. College Station, Texas, November 14, 2024
![](../../pictures/archives/compress/2012/1068/jpeg/14t.jpg) Flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
![](../../pictures/archives/compress/2012/1068/jpeg/15t.jpg) Blooming button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
![](../../pictures/archives/compress/2012/1071/jpeg/23t.jpg) Umbels of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 20, 2012
![](../../pictures/archives/compress/2008/679/jpeg/26t.jpg) White mistflower (Ageratina havanensis, Havana snakeroot) with a caterpillar in Lick Creek Park. College Station, Texas, October 19, 2008
![](../../pictures/archives/compress/2018/2280/jpeg/13t.jpg) Flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
![](../../pictures/archives/compress/2008/676/jpeg/12t.jpg) Goldenrod (Solidago canadensis) in Lick Creek Park. College Station, Texas, October 3, 2008
![](../../pictures/archives/compress/2024/3476/jpeg/16t.jpg) Close-up of black Hysteroid pyrenomycetous fungi on a log of mulberry in Lick Creek Park. College Station, Texas, February 23, 2024
![](../../pictures/archives/compress/2012/1071/jpeg/22t.jpg) Spiny head of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 20, 2012
![](../../pictures/archives/compress/2018/2280/jpeg/14t.jpg) Flower head of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 3, 2018
![](../../pictures/archives/compress/2020/2800/jpeg/07t.jpg) Boneset flowers (white snakeroot, Ageratina altissima) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, October 15, 2020
![](../../pictures/archives/compress/2012/1068/jpeg/16t.jpg) Spiny flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
![](../../pictures/archives/compress/2012/1068/jpeg/21t.jpg) Umbels of flowers of button snakeroot (rattlesnake master, Eryngium yuccifolium) in Lick Creek Park. College Station, Texas, June 10, 2012
![](../../pictures/archives/compress/2024/3535/jpeg/26t.jpg) Black hair of Ascomycete mushrooms Geopora arenosa(?) under a microscope collected in Lick Creek Park. College Station, Texas, May 13, 2024
![](../../pictures/archives/compress/2019/2555/jpeg/15t.jpg) Canada wildrye (Elymus canadensis) in Lick Creek Park. College Station, Texas, July 21, 2019
![](../../pictures/archives/compress/2018/2378/jpeg/12t.jpg) Black dots of fruiting structures of a fungus Ophiodothella vaccinii on leaves of farkleberry (Vaccinium arboreum) in Lick Creek Park. College Station, Texas, October 9, 2018
![](../../pictures/archives/compress/2022/3212/jpeg/17t.jpg) Brown rotting leaves of mustang grape and black leaf of hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
![](../../pictures/archives/compress/2019/2557/jpeg/12t.jpg) Black dots of fruiting structures of a fungus Ophiodothella vaccinii on leaves of farkleberry (Vaccinium arboreum) in Lick Creek Park. College Station, Texas, August 2, 2019
![](../../pictures/archives/compress/2024/3483/jpeg/08t.jpg) Young leaves of some bush in Bee Creek Park. College Station, March 7, 2024
![](../../pictures/archives/compress/2024/3496/jpeg/02t.jpg) Young leaves of poison ivy in Bee Creek Park. College Station, Texas, March 21, 2024
![](../../pictures/archives/compress/2024/3496/jpeg/01t.jpg) Young leaves on a tree in Bee Creek Park. College Station, Texas, March 21, 2024
![](../../pictures/archives/compress/2024/3535/jpeg/15t.jpg) Bolete mushrooms Strobilomyces dryophilus on black background on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, May 13, 2024
![](../../pictures/archives/compress/2024/3476/jpeg/13t.jpg) Black dots of Sordariomycetes fungi on bark of a fallen tree in wet area in Lick Creek Park. College Station, Texas, February 23, 2024
![](../../pictures/archives/compress/2023/3413/jpeg/13t.jpg) Dry seeds of Canada wild rye (Elymus canadensis)(?) in Lick Creek Park. College Station, Texas, September 8, 2023
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