Young leaves of red oak (Quercus buckleyi) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, March 19, 2010.
Red leaves of caladium in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 17, 2012
Red and yellow leaves of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
Young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 15, 2009
Fresh red cottony leaves on an oak on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
Red maple leaves near Lamsky Pond in Aleksandrovsky (Alexander) Park. Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, September 19, 2013
Red fruits and three-parted spiny leaves of Berberis trifoliolata (Agarita, Currant of Texas) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 17, 2008
Young red leaves of mustang grape on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
Ornamental plant of Virginia creeper (Parthenocissus quinquefolia) with red leaves and green berries covering a wall in Venus Garden in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 28, 2015
Young red leaves of an oak tree after a rain on Post Oak Trail in Lick Creek Park. College Station, Texas, April 2, 2009
Brilliant red leaves of spurge Euphorbia prostrata on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
Red and green leaves of Acalypha wilkesiana in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 29, 2008
Young leaves of Texas red oak (Quercus buckleyi) in TAMU Horticultural Gardens in Texas A&M University. College Station, Texas, March 6, 2009
Red leaves of Alternanthera ficoidea or brasiliana(?) at the entrance of Rawdat Al Faras Research Station (RAFRS) near Al Zubara Road. Qatar, May 29, 2015
Dark red rosettes of leaves of boat lily (Tradescantia spathacea, Rhoeo discolor) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Burgundy red leaves of swamp blueberry (Vaccinium uliginosum, Russian name Golubika or Gonobobel) in Boloto Lammin-Suo swamp reserve. Saint Petersburg, Russia, September 16, 2013
Red succulent leaves of Al Kheriza beach plant (Halopeplis perfoliata, khurreyz, string of beads ) in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, March 4, 2011
Back lit red leaves of farkleberry in Lick Creek Park. College Station, Texas, December 15, 2011
Multicolor maple leaves on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Red leaves of caladium in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 15, 2010
Red leaves of berberry in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013
Red palmately compound leaves of Virginia creeper (Parthenocissus quinquefolia) in Venus Garden in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 28, 2015
A tree with very big leaves on Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Creeping fern among dry leaves and needles on Koomer Ridge Trail. Red River Gorge, Kentucky, November 7, 1999.
Red leaves of sundew plant (Drosera brevifolia) in Big Thicket park on Sundew Trail. Texas, April 25, 2009
Red leaves of amaranth in TAMU Holistic Garden in Texas A and M University. College Station, Texas, April 20, 2012
Green and red leaves of caladium in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 14, 2012
Catkins and red young leaves of an oak tree in Lick Creek Park. College Station, Texas, March 27, 2009
Red leaves of maple near Lamsky Bridge in Aleksandrovsky (Alexander) Park. Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, September 19, 2013
Red leaves of spurge (Euphorbia prostrata or may be serpens) near Omar Al Mukhtar Street in West Bay. Doha, Qatar, March 22, 2014
Young red leaves of peppervine (Ampelopsis arborea) in Lick Creek Park. College Station, Texas, May 20, 2014
Red maple leaves on Starosylviyskaya Alley in Old Sylvia in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 18, 2015
Red leaves of a half dry Al Kheriza beach plant (Halopeplis perfoliata, khurreyz, string of beads) on a shore near Purple Island (Jazirat Bin Ghanim) in Al Khor. Qatar, November 28, 2015
Young red leaves in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2017
Floating yellow and red aspen leaves near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
Young leaves of red buckeye (Southern buckeye, Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
Young red cottony leaves on an oak on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
Milkcap mushroom Lactarius paradoxus with red leaves on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 9, 2019
Red leaves of stork s bill (bull filaree, Erodium texanum) in Old Baylor Park. Independence, Texas, March 2, 2020
Circular dark purplish red spots with centers fading with age caused by Deutero fungus (Neocercosporidium smilacis, Cercospora smilacis) on leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Dark red spots of Deutero fungus (Neocercosporidium smilacis, Cercospora smilacis) on leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Yellow and red aspen leaves in water near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
Yellow and red aspen leaves near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
Red fruits of narrow-leaved pinweed (Lechea tenuifolia) in Lick Creek Park. College Station, Texas, May 17, 2018
Young red glossy leaves of Taiwanese photinia (Photinia serratifolia) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, February 26, 2019
Red lovegrass (Eragrostis secundiflora)(?) with silvery leaves on a sandy road in Lick Creek Park. College Station, Texas, September 25, 2019
Close up of red lovegrass (Eragrostis secundiflora) with silvery leaves on a sandy road in Lick Creek Park. College Station, Texas, September 25, 2019
Basal rosette with red leaves of stork s bill (bull filaree, Erodium texanum) in Old Baylor Park. Independence, Texas, March 2, 2020
Fresh red leaves of blackjack oak (Quercus marilandica, black oak group) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 14, 2020
Young red leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Leaves of red wisker clammyweed (Polanisia dodecandra) on Moore s Hill Outcrop at FM Road 3090 2 miles north-east from Navasota. Texas, September 5, 2020
Red leaves of rusty blackhaw viburnum (Viburnum rufidulum)(?) on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
Red leaves of Chinese Pistache (Pistacia chinensis), on Hensel Drive. College Station, Texas, December 19, 2020
Red basal leaves of stork s bill (Erodium texanum) in Old Baylor Park. Independence, Texas, March 15, 2021
Leaves of crane s bill (Geranium carolinianum) with red galls caused by wart disease (false rust) by fungus Synchytrium geranii (Chytrids) taken from Bee Creek Park. College Station, Texas, March 23, 2021
Red warts on leaves of crane s bill (Geranium carolinianum) with fungus Synchytrium geranii (Chytrids) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, March 27, 2021
Tiny leaves of red water fern (Azolla) taken from Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, September 12, 2021
Fruits and red leaves of Chinese tallow (Sapium sebiferum) from a bridge in Research Park on campus of Texas A and M University. College Station, Texas, December 2, 2021
Red berries and leaves of Yaupon holly cut by ants in Bastrop State Park. Bastrop, Texas, December 25, 2021
Young red leaves of mustang grape on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 2, 2022
Dried red leaves of mustang grape on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 21, 2022
Young red leaves of blackjack oak in Lick Creek Park. College Station, Texas, March 2, 2023
Hairy red leaves of blackjack oak in Lick Creek Park. College Station, Texas, March 2, 2023
Back lit leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
Young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
Young leaves of red maple near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023
Young red leaves of oak on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 12, 2023
Shoot of oak with red leaves on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 12, 2023
Back lit young red leaves of oak on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 12, 2023
Young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2023
Red young leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
Red young leaves of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
Red leaves and flower buds of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
Red wrinkled leaves of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
White grainy substance from Protomyces(?) fungus near parasitic Ascomycete fungus Coccoidella scutula from upper surface of leaves of red bay (Persea borbonia) under a microscope with x100 objective, collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Various spores of fungi in white grainy substance from Protomyces(?) fungus near ascostromata of fungus Coccoidella scutula from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Various cells and spores of fungi near parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Pattern of various cells and spores of fungi growing together with parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Details of various cells and spores around parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Mycelium and spores of fungi around parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Yellow spores and mycelium (in KOH) of fungi around parasitic Ascomycete fungus Coccoidella scutula in white grainy substance from Protomyces(?) fungus from upper surface of leaves of red bay (Persea borbonia) collected a day before in Little Thicket Nature Sanctuary. Texas, March 26, 2023
Red and orange leaves of sweetgum on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 22, 2023
Red and yellow leaves of sweetgum on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 22, 2023
Dark red and orange leaves of sweetgum on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 22, 2023
Dark red and yellow leaves of sweetgum on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 22, 2023
Red leaves of some large spurge (Euphorbia) on a bridge in Wolf Pen Creek Park. College Station, Texas, January 11, 2024
Red leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
Green and red hairy leaves of a plant on a lawn on Lick Creek Greenway Trail. College Station, Texas, February 16, 2024
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
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
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
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
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
Spores (in Congo Red) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek Park. College Station, Texas, February 17, 2024
Young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
Reddish young leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
Fresh leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
Texture of fresh leaves of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
Young red leaves of blackjack oak in Lick Creek Park. College Station, Texas, March 31, 2024
Red and partially violet brittlegill mushrooms (Russula) on a gravel path covered by oak leaves in Lick Creek Park. College Station, Texas, April 16, 2024
Red leaves of sundew (Drosera rotundifolia, Russian name Rosianka) with dead flies on sphagnum moss near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
Sugar-frosted leaves of the bog blueberry or bog bilberry (Vaccinium uliginosum), locally known in Russia as golubika. The ice crystals have nucleated along the leaf margins, outlining each small oval leaf in white. This creates a striking contrast with the deep crimson tissue. The deep red pigmentation is due to anthocyanins.This is a classic sign of the "pre-winter" season (predzimye) in the taiga ecosystem. Kannelyarvi, north from Saint Petersburg, Russia, October 1, 2025
The wilder, naturalistic aesthetic of Alexander Park s landscape section. The visual appeal lies in the layered textures of the undergrowth--a mix of golden birch leaves and red shrubbery--creating a chaotic but harmonious "tapestry" effect. Unlike the formal alleys, this scene emphasizes density and verticality, with thin birch trunks contrasting against the soft, diffuse background of the forest depth. It evokes the intimacy of a forest interior (uncultivated nature), a deliberate romantic counterpoint to the manicured geometry of the nearby "New Garden". Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025
Majestic, mature trees in the Upper Park that define the landscape s romantic character. The massive, gnarled branches of an old oak tree dominate the foreground, framing the view with their dark bark and patches of green moss. Its remaining leaves are a mix of rusty orange and brown, contrasting with the brighter yellow foliage of the surrounding maples. Beneath the trees, a dense thicket of shrubs (dogwood) creates a vibrant layer of red and pink tones. This rich undergrowth adds warmth and complexity to the autumn palette, which is primarily golden-yellow. Oranienbaum palace-and-park ensemble in Lomonosov (a suburb of St. Petersburg), Russia, October 13, 2025
Statue of Ilioneus (also known as the Kneeling Youth) located in the Oranienbaum Park (Lomonosov, near St. Petersburg). The sculpture depicts Ilioneus, the youngest son of Niobe from Greek mythology, kneeling and raising his arms in a plea for mercy before being struck by Apollo s arrows. It stands beneath a stone pergola near the Chinese Palace in the Upper Park. The pergola is famously covered in the vibrant red leaves of wild grapes (Parthenocissus), creating a striking contrast with the dark bronze figure. Russia, October 13, 2025
Spotted leaves of Chinese Tallow exhibiting a phenomenon known as the "green island" effect. The infection sites produce or retain cytokinins (plant hormones) that keep the chlorophyll active in that specific spot. As a result, while the rest of the leaf receives the signal to shut down for winter (losing its green chlorophyll and revealing the red anthocyanin pigments), the infected "islands" stay green and photosynthetically active. Bee Creek Park. College Station, Texas, November 7, 2025
Red leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Red and green leaves of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Bright red leaves of flameleaf sumac (Rhus lanceolata) on Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Leaves of Common Greenbrier (Smilax rotundifolia) mottled "leopard print" look on black background. The red spots often form around areas of minor stress. Smilax leaves notoriously host various benign fungal endophytes or leaf spots (like Cercospora or Puccinia). In autumn, the tissues surrounding these tiny infection points often turn bright red (producing anthocyanin as a defense mechanism) long before the rest of the yellowing leaf dies, creating this vivid speckled contrast. Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Leaves of Common Greenbrier (Smilax rotundifolia) mottled "leopard print" look on the ground, showing a mix of nutrient recycling (yellow) and stress reaction (red) on Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Leaves of saw Greenbrier (Smilax bona-nox) showing natural genetic expression and seasonal aging. The white/cream blotches in the center of the leaves are likely natural variegation. In November, the green chlorophyll has died off to reveal the red anthocyanins (fall color). Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Leaves of saw Greenbrier (Smilax bona-nox) on a burned pine log with striking "mottled red" appearance where the white variegation "punches through" the red fall color. Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Red leaves of young plants of Chinese Tallow on Richards Loop Trail in Sam Houston National Forest. Texas, November 15, 2025
Sweetgum leaves turning red on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 7, 2025
Brilliant shades of yellow, orange, and red of leaves of Sassafras albidum on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 12, 2025
Orange and red leaves of Chinese tallow (Sapium sebiferum) on Richards Loop Trail in Sam Houston National Forest. Texas, December 12, 2025
Leaves of greenbrier (Smilax rotundifolia) turned brilliant shades of red, orange, and bronze on Richards Loop Trail in Sam Houston National Forest. Texas, December 12, 2025
Red leaves of sweetgum on Richards Loop Trail in Sam Houston National Forest. Texas, December 12, 2025
Red leaves of dogwood (Cornus florida)(?) on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, December 17, 2025
Red and dark-red leaves of sweetgum on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Orange and red leaves of sweetgum on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Red, green and orange leaves of sweetgum on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Red leaves of rattan vine (Berchemia scandens) on black background on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Green, red and orange colors of leaves of greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Thick, bright red stalks (petioles) and crinkly (savoyed) green leaves with red veins of Red Swiss Chard (likely the variety Ruby Red or Rhubarb Chard ), same species as garden beets (Beta vulgaris) in Leach Teaching Gardens at Texas A and M University. College Station, Texas, January 18, 2026
