 Fiddlehead of bracken fern (Pteridium aquilinum) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Young leaves of bracken fern (Pteridium aquilinum) in Lembolovo, 40 miles north from Saint Petersburg. Russia, June 12, 2009
 Fiddleheads of bracken fern (Pteridium aquilinum) in Orekhovo, north from Saint Petersburg. Russia, June 5, 2014
 Young leaf of bracken fern (Pteridium aquilinum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Pattern of a young leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Crosier (a coiled young fern frond) of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Crosier (a coiled young fern frond) of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Uncurling leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Huntsville, Texas, April 2, 2019
 Fiddleheads of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Shoot of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Fresh leaves of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Bracken fern (Pteridium aquilinum) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
 Malformed leaves of bracken fern (Pteridium aquilinum) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Irregularly grown leaves of bracken fern (Pteridium aquilinum) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Fiddleheads of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Unfolding leaves of bracken fern (Pteridium aquilinum) on Lone Star Hiking Trail in Sam Houston National Forest west from Richards. Texas, April 9, 2019
 Fall colors of bracken ferns (Pteridium aquilinum) north from Komarovo, 25 miles west from Saint Petersburg. Russia, September 16, 2013
 Fall colors of bracken ferns (Pteridium aquilinum) at a road stop north from Luga, Leningrad Region. Russia, September 8, 2013
 Fern like plants in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fern like plants in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Spruce needles in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Orange bugs in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Rattlesnake on a road in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Stellaria flower in a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Stick caterpillar near a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Dandelion flower near a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Stellaria flower near a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Small stellaria flowers in a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Moss on a large rock on a side of a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Lichen on a large rock on a side of a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Trumpet like lichens on a large rock on a side of a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Moss plants on a large rock on a side of a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Lily of the Valley (Convallaria majalis, Russian name Landysh) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Green nymph of grasshopper on a dried leaf of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Fall colors of ferns Pteridium aquilinum (Russian name Orlyak) near Komarovo, 25 miles north-west from Saint Petersburg. Russia, October 1, 2017
 Fern leaf in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
 False Lily-of-the-valley (Maianthemum bifolium, Russian name Maynik) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Tiny flower of corn speedwell (Veronica arvensis) in a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Flowers of Lily of the Valley (Convallaria majalis, Russian name Landysh) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Bird s-eye primrose (Primula farinosa, Pervotsvet Muchnisty in Russian) in area of Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Fruiting bodies (aethalia) of Wolf s Milk slime mold Lycogala epidendrum in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Fumitory (earth smoke, Fumaria officinalis, Russian name Dymianka) on a side of a field in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 Flowers of Mountain Cranberry (lingonberry, cowberry, Vaccinium vitis-idaea, Russian name Brusnika) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
 A.S. in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 A frog in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fir sprouts in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fiddleheads in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fiddlehead in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Crane flies in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Brown moth in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Emerging horsetail in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fern leaf in a forest in Pavlovsk Park. South from Saint Petersburg, Russia, July 21, 2012
 Fern leaf in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 26, 2014
 Small white flowers of Bittercress (Cardamine) in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Cut false morel mushroom (Gyromitra esculenta) in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Blister(?) beetle on a flower of Potentilla erecta(?) in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Camouflaged caterpillar of bagworm family (Lepidoptera: Psychidae, Russian name Meshochnitsa) in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fir-oak-fern rust (Hyalopsora aspidiotus) fungus on a leaf of northern oak fern Gymnocarpium dryopteris near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
 Alternate-leaved Golden Saxifrage (Chrysosplenium alternifolium, selezionochnik in Russian) with seeds in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Caterpillar on a twig of mountain ash (Black-veined white butterfly (Aporia crataegi)(?)) in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Bird s-eye primrose (Primula farinosa, Pervotsvet Muchnisty in Russian) near a spring in area of Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Flowers of Bird s-eye primrose (Primula farinosa, Pervotsvet Muchnisty in Russian) in area of Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Back lit caterpillar of black-veined white butterfly (Aporia crataegi) on a twig of mountain ash in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Rusty underside of a leaf of northern oak fern Gymnocarpium dryopteris affected by a fungal disease fir-oak-fern rust (Hyalopsora aspidiotus) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
 Yellow leaves of bracken fern under pines on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Seed head of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) with fluffy pappus attached to seed-bearing achenes in Menkovo, south from Saint Petersburg. Russia, June 1, 2011
 Fern in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
 Flower of butterfly pea (Centrosema virginianum) among bracken fern on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, June 22, 2021
 Brown fern in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 20, 2014
 Large fern near Kavgolovskoe Lake, between Oselki and Toksovo, north from Saint Petersburg. Russia, June 3, 2014
 Fern leaves in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
 Carpet of fern like leaves in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
 Fern leaf in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Young leaf of a common fern in Antique Rose Emporium. Independence, Texas, March 15, 2021
 Fern leaf in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Fern leaf in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013
 Tall Ostrich fern (Matteuccia struthiopteris) near Kavgolovskoe Lake, between Oselki and Toksovo, north from Saint Petersburg. Russia, June 3, 2014
 Fern leaf in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019
 Skunk in tail-high threat posture among bracken fern on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Black eyed susan (Rudbeckia hirta) with bracken fern at Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 9, 2022
 Large leaves of Ostrich fern (Matteuccia struthiopteris) near Kavgolovskoe Lake, between Oselki and Toksovo, north from Saint Petersburg. Russia, June 3, 2014
 Fiddleheads of a young fern near Lisiy Nos, west from Saint Petersburg. Russia, May 9, 2017
 Fiddlehead greens of a young fern near Lisiy Nos, west from Saint Petersburg. Russia, May 9, 2017
 Young leaves of fern (fiddleheads) in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2017
 Young fern leaves near Dibuny, north-west from Saint Petersburg, Russia, May 29, 2017
 Fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Leaf of fern in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, March 8, 2017
 Back lit fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Fine leaf of fern in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, March 8, 2017
 Hairy fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Branching fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Round leaf of fern in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Details of a fern leaf in a greenhouse in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
 Back side of a fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
 Young leaves of ostrich fern in Upper Garden. Oranienbaum (Lomonosov), a suburb of Saint Petersburg, Russia, May 11, 2016
 Clitocybula lacerata(?) mushrooms in a shallow ditch or depression near Forest Road 302, under bracken fern, in a pine forest, on partially burned ground after prescribed fire in Sam Houston National Forest. Richards, Texas, June 29, 2019
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