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
Fern leaf damaged by frost over a stream in Hamilton Pool Preserve, west from Austin. Texas, January 12, 2013
Branching fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
Fern leaf lavender (Lavandula multifida) in Antique Rose Emporium. Independence, Texas, March 26, 2010.
Details of a fern leaf in a greenhouse in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
Round leaf of fern in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
Dew on a leaf of fern near Fall Creek and arboretum. Ithaca, New York, October 11, 2005
Fern leaf in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 26, 2014
Fern leaf in a forest in Pavlovsk Park. South from Saint Petersburg, Russia, July 21, 2012
Back lit fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
Fern leaf in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013
Young leaf of bracken fern (Pteridium aquilinum) in Menkovo, south from Saint Petersburg. Russia, June 4, 2014
Fern leaf in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
Back side of a fern leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, January 5, 2016
Hairy 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
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
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
Fern leaf in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019
Fern leaf in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
Leaf of resurrection fern (Pleopeltis polypodioides) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020
Young leaf of a common fern in Antique Rose Emporium. Independence, Texas, March 15, 2021
Leaf of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
Outgrowth on a leaf of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
Leaf pattern of climbing fern (Lygodium japonicum) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
Leaf of climbing fern (Lygodium japonicum) suffered from freeze(?) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, January 22, 2022
Green nymph of grasshopper on a dried leaf of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
Uncurling leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
Pattern of a young leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
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
Underside of a leaf of common lady-fern (Athyrium filix-femina)(?) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 15, 2024
Fissidens (pocket moss), likely F. taxifolius or F. adianthoides, F. bushii on Lake Trail in Fort Boggy State Park. It is uniquely recognizable by its distichous leaf arrangement - leaves in two opposite, flat ranks along the stem, creating a distinctive fern-frond-like silhouette. Leon County, Texas, March 16, 2025
Fissidens (pocket moss), likely F. taxifolius or may be F. adianthoides, F. bushii. It is uniquely recognizable by its distichous leaf arrangement - leaves in two opposite, flat ranks along the stem, creating a distinctive fern-frond-like silhouette. Fort Boggy State Park. Leon County, Texas, February 21, 2026
Young leaf of bracken fern (Pteridium aquilinum) on Richards Loop Trail in Sam Houston National Forest. Montgomery County, Texas, March 22, 2026
