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2473-12. Common yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 Common yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 22, 2019  Sorrel rust fungus (Puccinia oxalidis) on yellow oxalis (Oxalis stricta) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019  Leaves of yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019  Sorrel rust fungus (Puccinia oxalidis) on yellow oxalis (Oxalis stricta) in Bee Creek Park. College Station, Texas, March 29, 2022  Underside of leaves of wood sorrel Oxalis stricta with rust fungus Puccinia oxalidis in Bee Creek Park. College Station, Texas, March 29, 2022  Common yellow wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019  Yellow flowers of common wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019  Blooming common yellow wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019  Close up of yellow flowers of common wood sorrel (Oxalis stricta) on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, March 14, 2019  Urediniospores of sorrel rust fungus (Puccinia oxalidis), collected in Bee Creek Park. College Station, Texas, March 29, 2022  Spores of sorrel rust fungus (Puccinia oxalidis) at low magnofication, collected in Bee Creek Park. College Station, Texas, March 29, 2022  Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020  Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020  Yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019  Tiny purple flower of Violet wood sorrel (shamrock, Oxalis) on Deer Run Trail in Lick Creek Park. College Station, Texas, September 30, 2008  Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009  Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) with soldier flies (Stratiomyidae) in Big Thicket park on Sandhill Loop Trail. Texas, March 23, 2008  Yellow wood sorrel (shamrock, Oxalis dillenii?) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024  Yellow wood sorrel (shamrock, Oxalis dillenii?) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012  Blooming slender trillium (Trillium gracile) and yellow wood sorrel (Oxalis) on Fringe Tree Trail in Little Thicket Nature Sanctuary. Cleveland, Texas, March 23, 2024  Yellow wood sorrel (Oxalis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 26, 2022  Blooming yellow wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012  Yellow flower of wood sorrel (shamrock, Oxalis dillenii?) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 13, 2012  Flowers of yellow wood sorrel (Oxalis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 26, 2022  Spiderwort (Tradescantia) and yellow wood sorrel (oxalis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2022  Spores of rust fungus Puccinia modiolae collected from Lick Creek Park. College Station, Texas, March 7, 2022  Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021  Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Flowers of yellow woodsorrel (Oxalis stricta) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021  Close-up of orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Underside of basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Seedlings of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Close-up of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail taken from Lick Creek Park. College Station, Texas, March 7, 2022  Leaves of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Yellow woodsorrel (Oxalis stricta) on a sandy path in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021  Young plant of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Teliospores and urediniospores of rust fungus Puccinia modiolae at higher magnification collected from Lick Creek Park. College Station, Texas, March 7, 2022  Urediniospores of rust fungus Puccinia eatoniae var. myosotidis(?) from scorpion grass collected from Lick Creek Park. College Station, Texas, March 7, 2022  Violet wood sorrel (Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024  Side view of seedlings of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019  Spindle-shaped teliospores of rust fungus Puccinia modiolae at higher magnification collected from Lick Creek Park. College Station, Texas, March 7, 2022  Violet wood sorrel (shamrock, Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Violet wood sorrel (shamrock, Oxalis violacea) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020  Flower of violet wood sorrel (Oxalis violacea) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019  Flowers of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019  Blooming wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from Lick Creek Park. College Station, Texas, March 7, 2022  Blister-like pustules on underside and yellow-orange sunken spots on upper leaf surface of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  May apple (mandrake, Podophyllum peltatum) with yellow spots caused by teleutosori of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 30, 2019  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, May 13, 2019  Urediniospores of rust fungus Puccinia eatoniae var. myosotidis(?) from scorpion grass collected from Lick Creek Park 3/7/2022. College Station, Texas, March 8, 2022  Violet wood sorrel (shamrock, Oxalis violacea?) in Big Thicket park on Sundew Trail. Texas, October 11, 2008  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019  Inflorescence of common witchgrass (Panicum capillare) on Raccoon Run Trail on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 23, 2020  Blooming common witchgrass (Panicum capillare) on Raccoon Run Trail on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 23, 2020  White flowers of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, May 16, 2019  Flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023  Bloomin violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023  Back lit flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023  Pink flowers of violet wood sorrel (Oxalis violacea, shamrock) in Little Thicket Nature Sanctuary. Cleveland, Texas, March 25, 2023  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in area of Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) collected a day before in Lick Creek Park. College Station, Texas, February 10, 2023  Flower of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011  Back lit Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011  Flowers of Violet Wood Sorrel (Oxalis violacea) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011  Violet wood sorrel (Oxalis violacea, shamrock) on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020  Violet wood sorrel (shamrock, Oxalis violacea?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009  Pink wood sorrel (shamrock, Oxalis violacea?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009  Flowers of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in area of Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015  Close up of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in area of Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) at low magnification, collected in Lick Creek Park. College Station, Texas, February 10, 2023  Purple flowers of Violet wood sorrel (shamrock, Oxalis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009  White flowers of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in area of Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, May 18, 2015  Pink flower of Violet wood sorrel (Oxalis violacea, shamrock) on Prairie Trail in Brazos Bend State Park. Needville, Texas, April 22, 2008  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) (stacked image), collected in Lick Creek Park. College Station, Texas, February 10, 2023  Violet Wood Sorrel (Oxalis violacea) blooming at fall without leaves in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, October 22, 2011  Seedlings of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) on sewage line right of way near Racoon Run Trail in Lick Creek Park. College Station, Texas, February 9, 2023  Leaves of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) on sewage line right of way near Racoon Run Trail in Lick Creek Park. College Station, Texas, February 9, 2023  Violet wood sorrel (Oxalis violacea) on Sundew Trail in Big Thicket National Preserve. Kountze, Texas, August 2, 2014  Pink flowers of Violet wood sorrel (Oxalis violacea, shamrock) on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 10, 2016  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017  Cut-leaved evening primrose (Oenothera laciniata) with rust fungus Puccinia dioicae or may be P. oenotherae in Lick Creek Park. College Station, Texas, April 18, 2022  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 11, 2019  Blooming wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 10, 2016  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) with flowers in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017  Flowers of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 10, 2016  Blooming wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017  Flower of wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017  Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in flower in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017  Spores of different sizes of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Teleutospores and aeciospores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Various types of spores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022 |