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2827-07. Dry stem of giant ragweed (Ambrosia trifida) with fungus-like dots with white hair taken from Bee Creek Park. College Station, Texas, December 9, 2020Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
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2827-07. Dry stem of giant ragweed (Ambrosia trifida) with fungus-like dots with white hair taken from Bee Creek Park. College Station, Texas, December 9, 2020Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 Blooming giant ragweed (Ambrosia trifida) in Bee Creek Park. College Station, Texas, September 28, 2021  Blooming giant ragweed (Ambrosia trifida) in Lick Creek Park. College Station, Texas, September 22, 2021  Giant ragweed (Ambrosia trifida) on Kiwanis Nature Trail. College Station, Texas, April 20, 2023  Dry plant of giant ragweed (Ambrosia trifida) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 5, 2023  Dry leaves of giant ragweed (Ambrosia trifida) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 5, 2023  Giant ragweed (Ambrosia trifida) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 26, 2023  Giant ragweed (Ambrosia trifida) with half-white leaves at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 14, 2024  Flower buds of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020  Wilted giant ragweed (Ambrosia trifida) after application of a herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020  Giant ragweed (Ambrosia trifida) after application of herbicide that is causing it to wilt and shrivel in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020  Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022  Giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 15, 2019  Shoot of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021  Seedling of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 20, 2022  Blooming giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012  Shoot of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 27, 2021  Dry plant of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 9, 2023  Green flowers with pollen of giant ragweed (Ambrosia trifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012  Wilted giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 20, 2022  Distorted growth of giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023  Curled leaves of giant ragweed (Ambrosia trifida) under 2,4-D Ester(?) herbicide in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 29, 2023  Tiny black dots of Ascomycota fungus on a fallen stem of giant cane (Arundinaria gigantea) on Kiwanis Nature Trail. College Station, Texas, April 29, 2020  Ragweed (Ambrosia) in Lick Creek Park. College Station, Texas, October 3, 2008  Ragweed (Ambrosia artemisiifolia) in Lick Creek Park. College Station, Texas, September 29, 2022  Ragweed (Ambrosia artemisiifolia) in Lick Creek Park. College Station, Texas, October 23, 2013  Butterfly sleeping on ragweed (Ambrosia) in Lick Creek Park. College Station, Texas, September 29, 2010  Ragweed (Ambrosia) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 30, 2008  Black Ascomycota fungus on a stem joint of giant cane (Arundinaria gigantea) on Kiwanis Nature Trail. College Station, Texas, April 29, 2020  Black Ascomycota fungus on a fallen stem of giant cane (Arundinaria gigantea) on Kiwanis Nature Trail. College Station, Texas, April 29, 2020  Gray-white smooth sheet with black dots of a fungus Biscogniauxia atropunctata (Hypoxylon atropunctatum) on a dry oak tree in Hensel Park. College Station, Texas, December 2, 2017  Black dots of Ascomycota fungi on a bamboo stem on Kiwanis Nature Trail. College Station, Texas, December 7, 2017  Shoot of giant ragweed in Lick Creek Park. College Station, Texas, March 31, 2023  White corticioid fungus spreading on a bamboo stem in Hensel Park. College Station, Texas, December 9, 2017  Leaf of giant ragweed(?) with frost near the creek in Bee Creek Park. College Station, Texas, January 4, 2022  Common ragweed (Ambrosia artemisiifolia) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, April 1, 2024  Close up of black dots of a fungus Biscogniauxia atropunctata (Hypoxylon atropunctatum) in Hensel Park. College Station, Texas, December 2, 2017  White margins of corticioid fungus Scytinostroma portentosum(?) on a dry stem of pecan in Lick Creek Park. College Station, Texas, January 2, 2023  Frostweed stem with ice crystals in Lick Creek Park. College Station, Texas, December 1, 2020  Common ragweed (Ambrosia artemisiifolia) on Forest Service Road 203 in Sam Houston National Forest. Texas, July 12, 2020  Common ragweed (Ambrosia artemisiifolia) on Forest Service Road 203 in Sam Houston National Forest. Texas, August 21, 2020  Giant reed (Arundo donax) near the creek in Bee Creek Park. College Station, Texas, December 9, 2020  Distorted leaves of common ragweed (Ambrosia artemisiifolia) with galls caused by eriophyid mites in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 25, 2021  Texture of ice crystals on a frostweed stem in Lick Creek Park. College Station, Texas, December 1, 2020  Hairy ice crystals on a frostweed stem in Lick Creek Park. College Station, Texas, December 1, 2020  Close-up of ice crystals on a frostweed stem in Lick Creek Park. College Station, Texas, December 1, 2020  Broken stem of frostweed exposing ice crystals in Lick Creek Park. College Station, Texas, December 1, 2020  Cracked stem of frostweed after a cold morning in Lick Creek Park. College Station, Texas, December 1, 2020  Inflating stem of frostweed showing fluffy crystals of ice in Lick Creek Park. College Station, Texas, December 1, 2020  Salt moth caterpillar on a leaf of giant ragweed at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 5, 2020  Close-up of corticioid fungus Dichostereum effuscatum(?) on a fallen stem of Yaupon holly in Lick Creek Park. College Station, Texas, December 20, 2023  Spores of corticioid fungus Dichostereum effuscatum(?) from a fallen stem of Yaupon holly, collected a day before in Lick Creek Park. College Station, Texas, December 21, 2023  Light brown corticioid fungus Dichostereum effuscatum(?) on a fallen stem of Yaupon holly in Lick Creek Park. College Station, Texas, December 20, 2023  Orange dots of fungus Melogramma gyrosum on a fallen oak on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 10, 2020  Common ragweed (Ambrosia artemisiifolia) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019  Light brown corticioid fungus Dichostereum effuscatum(?) on bark of a fallen stem of Yaupon holly in Lick Creek Park. College Station, Texas, December 20, 2023  Common ragweed (Ambrosia artemisiifolia) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, July 20, 2019  Growth of ragweed (Ambrosia) under power lines in Lake Bryan Park. Bryan, Texas, July 26, 2013  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  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  Leaves of common ragweed (Ambrosia artemisiifolia) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, August 4, 2018  Galls (hollow blisters) on leaves of common ragweed (Ambrosia artemisiifolia) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021  Leaves of common ragweed (Ambrosia artemisiifolia) damaged by eriophyid gall mites at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021  Leaves of common ragweed (Ambrosia artemisiifolia) with galls caused by eriophyid mites at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021  Galls caused by eriophyid mites on leaves of common ragweed (Ambrosia artemisiifolia) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021  Distorted leaves of common ragweed (Ambrosia artemisiifolia) with galls caused by eriophyid mites at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 3, 2021  Tiny white Orbilia like Ascomycete fungi on a cut stem of Yaupon holly on Kiwanis Nature Trail. College Station, Texas, December 19, 2019  Galls (numerous pale green warts) on leaves of common ragweed (Ambrosia artemisiifolia) caused by eriophyid gall mites at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021  White porous crust fungus in Lick Creek Park. College Station, Texas, May 22, 2020  White porous crust fungus under a log in Lick Creek Park. College Station, Texas, May 22, 2020  Giant reed (Arundo donax) in Bee Creek Park. College Station, Texas, November 11, 2020  Purple bindweed and ragweed (Ambrosia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2022  White corticioid (crust) fungus on a log in Lick Creek Park. College Station, Texas, January 3, 2020  Oak bark with white lichen in Lick Creek Park. College Station, Texas, December 11, 2020  White corticioid fungus together with Hymenochaete fungus in Hensel Park. College Station, Texas, December 9, 2017  Hair under a microscope (with x10 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023  Reeds (giant cane, Arundo donax) in Bee Creek Park. College Station, Texas, December 3, 2017  Texture of white corticioid (crust) fungus on a log in Lick Creek Park. College Station, Texas, January 3, 2020  White-rot fungus (Punctularia strigosozonata) on a big fallen oak in Lick Creek Park. College Station, Texas, October 6, 2020  Brown crust fungus with white margins on an oak log in Lick Creek Park. College Station, Texas, July 29, 2020  Reeds (giant cane, Arundo donax) near a creek in Bee Creek Park. College Station, Texas, December 3, 2017  Common ragweed (Ambrosia artemisiifolia) at Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022  Common ragweed (Ambrosia artemisiifolia) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022  Dwarf dandelion (Krigia occidentalis) with giant ragweed at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Common ragweed (Ambrosia artemisiifolia) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022  Rusty porecrust fungus Fuscoporia ferruginosa on a dry stem of a bush in Bee Creek Park. College Station, Texas, November 1, 2017  Spores of white web-like fungus from a log, collected a day before on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 8, 2023  Pollinating greenish-yellow staminate blossoms of common ragweed (Ambrosia artemisiifolia) near Meyersville Road, with a silken strand from a spider mite. North from Chappell Hill, Texas, September 21, 2008  Sorghum ergot fungus (Claviceps africana) on johnsongrass on white background taken from Bee Creek Park. College Station, Texas, August 27, 2020  Gills and stem of parasol mushroom (Macrolepiota procera) in Lick Creek Park. College Station, Texas, August 23, 2020  Typical white stripe of a lichen on bark of water oak in Lick Creek Park. College Station, Texas, December 11, 2020  Close-up of corticioid fungus Scytinostroma portentosum(?) on a dry stem of pecan in Lick Creek Park. College Station, Texas, January 2, 2023  Tan-colored corticioid fungus Scytinostroma portentosum(?) on a dry stem of pecan in Lick Creek Park. College Station, Texas, January 2, 2023  Texture of corticioid fungus Scytinostroma portentosum(?) on a dry stem of pecan in Lick Creek Park. College Station, Texas, January 2, 2023  Corticioid fungus Scytinostroma portentosum(?) together with Hymenochaete on a dry stem of pecan in Lick Creek Park. College Station, Texas, January 2, 2023  White web-like fungus on a wet almost decomposed log of a broadleaf tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 7, 2023  Reeds (giant cane, Arundo donax) with fall colors of maple in Bee Creek Park. College Station, Texas, December 3, 2017  White crust fungus around a damaged spot on a Mexican plum tree in Lick Creek Park. College Station, Texas, July 5, 2020  Gray-white crust fungus Biscogniauxia atropunctata (Hypoxylon atropunctatum) in Lick Creek Park. College Station, Texas, January 15, 2020  White corticioid fungus around a damaged spot on a Mexican plum tree in Lick Creek Park. College Station, Texas, July 5, 2020 |