![](../../pictures/archives/compress/2019/2526/jpeg/12t.jpg) Reddish-green bladder galls on upper leaf surfaces of poison ivy produced by the eriophyid mite, Aculops rhois (A. toxicophagus, family Eriophyidae) in Bee Creek Park. College Station, Texas, June 10, 2019
![](../../pictures/archives/compress/2019/2526/jpeg/13t.jpg) Puckered, irregular, wart-like galls on leaf surfaces of poison ivy produced by the eriophyid mite Aculops rhois (A. toxicophagus) in Bee Creek Park. College Station, Texas, June 10, 2019
![](../../pictures/archives/compress/2019/2526/jpeg/10t.jpg) Poison ivy leaf gall mite (irregular, wart-like light green to reddish-green bladder galls) in Bee Creek Park. College Station, Texas, June 10, 2019
![](../../pictures/archives/compress/2019/2526/jpeg/11t.jpg) Yellowish-green and brilliant red wart-like galls on leaf surfaces of poison ivy in Bee Creek Park. College Station, Texas, June 10, 2019
![](../../pictures/archives/compress/2022/3160/jpeg/06t.jpg) Persimmon leaf blister galls caused by bead gall mite Aceria theospyri on leaves of persimmon (Diospyros virginiana) on Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
![](../../pictures/archives/compress/2017/2079/jpeg/12t.jpg) Red velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
![](../../pictures/archives/compress/2019/2472/jpeg/14t.jpg) Close up of reddish spots on a leaf of Drummond s beeblossom (Oenothera xenogaura, Gaura drummondii) developed under low light and cool growing conditions in Wolf Pen Creek Park. College Station, Texas, March 24, 2019
![](../../pictures/archives/compress/2010/857/jpeg/14t.jpg) Grape Tomato Gall, Lasioptera vitis (mass of irregular swellings produced by the larva of a small two-winged fly) on mustang grape on Iron Bridge Trail in Lick Creek Park. College Station, Texas, May 4, 2010
![](../../pictures/archives/compress/2017/2126/jpeg/11t.jpg) Velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
![](../../pictures/archives/compress/2022/3172/jpeg/06t.jpg) Green camouflage of common true katydid on a leaf in Lick Creek Park. College Station, Texas, June 8, 2022
![](../../pictures/archives/compress/2022/3134/jpeg/25t.jpg) Some mite from a plant leaf under microscope, collected in Lick Creek Park. College Station, Texas, April 18, 2022
![](../../pictures/archives/compress/2022/3106/jpeg/17t.jpg) Leaf tip of common green moss through a microscope, collected on a lawn in Bee Creek Park. College Station, Texas, February 11, 2022
![](../../pictures/archives/compress/2022/3106/jpeg/16t.jpg) Leaf of common green moss through a microscope at low magnification, collected on a lawn in Bee Creek Park. College Station, Texas, February 11, 2022
![](../../pictures/archives/compress/2017/2205/jpeg/12t.jpg) Gall (Woolly growth) on a dry oak leaf in Wolf Pen Creek Park. College Station, Texas, November 30, 2017
![](../../pictures/archives/compress/2022/3212/jpeg/11t.jpg) Olive brown rotting leaf of green ash on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
![](../../pictures/archives/compress/2022/3106/jpeg/18t.jpg) Plant cells of a leaf of common green moss through a microscope, collected on a lawn in Bee Creek Park. College Station, Texas, February 11, 2022
![](../../pictures/archives/compress/2022/3165/jpeg/04t.jpg) Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, June 1, 2022
![](../../pictures/archives/compress/2024/3509/jpeg/07t.jpg) Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024
![](../../pictures/archives/compress/2017/2079/jpeg/14t.jpg) Red velvety patches on a birch leaf caused by the eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
![](../../pictures/archives/compress/2021/2891/jpeg/22t.jpg) Leaf of crane s bill (Geranium carolinianum) with a wart caused by fungus Synchytrium geranii on a lawn in Hensel Park. College Station, Texas, March 25, 2021
![](../../pictures/archives/compress/2014/1501/jpeg/07t.jpg) Fat green grasshopper on a leaf of Chenopodium murale on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
![](../../pictures/archives/compress/2021/2995/jpeg/22t.jpg) 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
![](../../pictures/archives/compress/2024/3608/jpeg/14t.jpg) Green leaf of lettuce from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2019/2513/jpeg/23t.jpg) Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019
![](../../pictures/archives/compress/2019/2520/jpeg/08t.jpg) Leaf cutting ant mound on a sandy road in Lick Creek Park. College Station, Texas, June 6, 2019
![](../../pictures/archives/compress/2022/3096/jpeg/20t.jpg) Leaf texture of an icy leaf of curly dock near the creek in Bee Creek Park. College Station, Texas, January 4, 2022
![](../../pictures/archives/compress/2023/3450/jpeg/04t.jpg) Orange and green leaves of poison ivy in Lick Creek Park. College Station, Texas, December 23, 2023
![](../../pictures/archives/compress/2017/2079/jpeg/13t.jpg) Red velvety patches on a birch leaf (velvet erineum galls) in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
![](../../pictures/archives/compress/2011/965/jpeg/16t.jpg) Green leaf in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 18, 2011
![](../../pictures/archives/compress/2024/3629/jpeg/18t.jpg) Green leaf of a cabbage head when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from HEB supermarket. College Station, Texas, October 8, 2024
![](../../pictures/archives/compress/2024/3608/jpeg/15t.jpg) Close-up of green leaf of lettuce from a supermarket when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight. College Station, Texas, August 25, 2024
![](../../pictures/archives/compress/2023/3348/jpeg/14t.jpg) Close-up of a leaf of curly dock (Rumex crispus) with reddish purple blotches caused by fungus Ramularia rubella in Bee Creek Park. College Station, Texas, February 24, 2023
![](../../pictures/archives/compress/2023/3348/jpeg/15t.jpg) Underside of a leaf of curly dock (Rumex crispus) with reddish purple blotches caused by fungus Ramularia rubella in Bee Creek Park. College Station, Texas, February 24, 2023
![](../../pictures/archives/compress/2022/3252/jpeg/28t.jpg) Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, September 29, 2022
![](../../pictures/archives/compress/2019/2603/jpeg/11t.jpg) Woolly growth (gall) on a dry oak leaf in Bastrop State Park. Bastrop, Texas, November 28, 2019
![](../../pictures/archives/compress/2020/2689/jpeg/31t.jpg) Green leaves of eastern poison ivy (Toxicodendron radicans) in Wolf Pen Creek Park. College Station, Texas, April 19, 2020
![](../../pictures/archives/compress/2021/2889/jpeg/30t.jpg) 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
![](../../pictures/archives/compress/2022/3188/jpeg/11t.jpg) Venation of a large green leaf in Leach Teaching Gardens at Texas A and M University. College Station, Texas, July 7, 2022
![](../../pictures/archives/compress/2019/2603/jpeg/12t.jpg) Orange woolly growth (gall) on a fallen oak leaf in Bastrop State Park. Bastrop, Texas, November 28, 2019
![](../../pictures/archives/compress/2024/3634/jpeg/04t.jpg) Leaf of a thistle (Cirsium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 22, 2024
![](../../pictures/archives/compress/2010/892/jpeg/21t.jpg) Green anole (Anolis carolinensis) looking from a leaf of eggplant in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 26, 2010
![](../../pictures/archives/compress/2023/3412/jpeg/11t.jpg) Black blotches on underside of the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola in Bee Creek Park. College Station, Texas, August 31, 2023
![](../../pictures/archives/compress/2022/3184/jpeg/08t.jpg) Green nymph of grasshopper on a dried leaf of bracken fern on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
![](../../pictures/archives/compress/2011/965/jpeg/18t.jpg) Green leaf venation in aquatic plant greenhouse in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 18, 2011
![](../../pictures/archives/compress/2010/892/jpeg/22t.jpg) Green anole (Anolis carolinensis) sitting on a leaf of eggplant in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 26, 2010
![](../../pictures/archives/compress/2010/892/jpeg/24t.jpg) Green anole (Anolis carolinensis) on a lookout from a leaf of eggplant in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 26, 2010
![](../../pictures/archives/compress/2014/1462/jpeg/05t.jpg) Galls on an oak leaf near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
![](../../pictures/archives/compress/2012/1117/jpeg/22t.jpg) Galls under an oak leaf in Birch Creek Unit of Somerville Lake State Park. Texas, November 11, 2012
![](../../pictures/archives/compress/2010/892/jpeg/23t.jpg) Back lit green anole (Anolis carolinensis) sitting on a leaf of eggplant in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 26, 2010
![](../../pictures/archives/compress/2009/782/jpeg/26t.jpg) Green lynx spider on a leaf of Bellyache bush (Jatropha gossypiifolia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 29, 2009
![](../../pictures/archives/compress/2022/3212/jpeg/28t.jpg) Brown leaf of mustang grape and yellow leaf of muscadine grape on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
![](../../pictures/archives/compress/2014/1462/jpeg/06t.jpg) Close up of galls on an oak leaf near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
![](../../pictures/archives/compress/2024/3618/jpeg/11t.jpg) Young leaf of mustang grape (Vitis mustangensis) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024
![](../../pictures/archives/compress/2009/792/jpeg/01t.jpg) Pregnant(?) green lynx spider on a leaf of Jatropha gossypiifolia (Bellyache bush) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 11, 2009
![](../../pictures/archives/compress/2024/3496/jpeg/12t.jpg) Reddish young leaves of poison ivy in Bee Creek Park. College Station, Texas, March 21, 2024
![](../../pictures/archives/compress/2022/3182/jpeg/04t.jpg) Buttonbush with leaf galls caused by mites Aceria cephalanthi in Watson Rare Native Plant Preserve. Warren, Texas, June 25, 2022
![](../../pictures/archives/compress/2008/682/jpeg/03t.jpg) Tiny red flowers with green fruits of Jatropha gossypiifolia (Bellyache bush, Cotton Leaf, Physic nut, Sibidigua, Tua-Tua) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 28, 2008
![](../../pictures/archives/compress/2019/2531/jpeg/08t.jpg) Green and orange foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2024/3639/jpeg/29t.jpg) Sandstone with green algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
![](../../pictures/archives/compress/2019/2555/jpeg/04t.jpg) Leaf of sycamore in Lick Creek Park. College Station, Texas, July 21, 2019
![](../../pictures/archives/compress/2020/2708/jpeg/21t.jpg) Venation of a green leaf in Antique Rose Emporium. Independence, Texas, May 16, 2020
![](../../pictures/archives/compress/2019/2540/jpeg/26t.jpg) Gills and dirty green caps of brittlegill mushrooms Russula aeruginea(?) in Lick Creek Park. College Station, Texas, June 28, 2019
![](../../pictures/archives/compress/2019/2557/jpeg/15t.jpg) Venation of sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
![](../../pictures/archives/compress/2019/2557/jpeg/14t.jpg) Back lit sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
![](../../pictures/archives/compress/2008/637/jpeg/13t.jpg) Long yellow-green trumpet-like leaf with a hooded lid of Sarracenia alata in Big Thicket park on Pitcher Plant Trail. Texas, April 26, 2008
![](../../pictures/archives/compress/2012/1072/jpeg/09t.jpg) Leaf of greenbrier (Smilax) in Bee Creek Park in College Station, Texas, June 21, 2012
![](../../pictures/archives/compress/2019/2557/jpeg/13t.jpg) Underside of a young sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
![](../../pictures/archives/compress/2008/636/jpeg/11t.jpg) Long yellow-green trumpet-like leaf with a hooded lid of Pitcher plant (Sarracenia alata) in Big Thicket park on Sundew Trail. Texas, April 26, 2008
![](../../pictures/archives/compress/2008/622/jpeg/05t.jpg) Long yellow-green trumpet-like leaf with a hooded lid of pitcher plant (Sarracenia alata) in Big Thicket park on Sundew Trail. Texas, March 23, 2008
![](../../pictures/archives/compress/2024/3641/jpeg/18t.jpg) Green carpet of water fern (Azolla) and duckweed both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Bee Creek Park. College Station, Texas, November 11, 2024
![](../../pictures/archives/compress/2022/3119/jpeg/01t.jpg) Resupinate polypore mushroom Elmerina caryae on almost dry wax-leaf privet, on a fallen trunk, very light weight and rotten, in Hensel Park. College Station, Texas, March 16, 2022
![](../../pictures/archives/compress/2012/1072/jpeg/13t.jpg) Veination of a leaf of greenbrier (Smilax) in Bee Creek Park in College Station, Texas, June 21, 2012
![](../../pictures/archives/compress/2012/1072/jpeg/11t.jpg) Close up of a leaf of greenbrier (Smilax) in dew in Bee Creek Park in College Station, Texas, June 21, 2012
![](../../pictures/archives/compress/2012/1072/jpeg/02t.jpg) Leaf of mustang grape in Lick Creek Park. College Station, Texas, June 20, 2012
![](../../pictures/archives/compress/2012/1072/jpeg/10t.jpg) Back lit leaf of greenbrier (Smilax) in dew in Bee Creek Park in College Station, Texas, June 21, 2012
![](../../pictures/archives/compress/2012/1072/jpeg/07t.jpg) Back lit leaf of mustang grape in Bee Creek Park in College Station, Texas, June 21, 2012
![](../../pictures/archives/compress/2019/2471/jpeg/09t.jpg) Back lit hickory like leaf on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 22, 2019
![](../../pictures/archives/compress/2019/2602/jpeg/08t.jpg) Hydnoid mushrooms Mycoaciella bispora on a leaf under an oak log in Lick Creek Park. College Station, Texas, November 26, 2019
![](../../pictures/archives/compress/2009/786/jpeg/26t.jpg) Green lynx spider on a leaf of jatropha in Antique Rose Emporium. Independence, Texas, August 15, 2009
![](../../pictures/archives/compress/2020/2708/jpeg/20t.jpg) Gark green glossy leaf with prominent veines in Antique Rose Emporium. Independence, Texas, May 16, 2020
![](../../pictures/archives/compress/2021/2883/jpeg/24t.jpg) Leaf of poison ivy in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
![](../../pictures/archives/compress/2022/3172/jpeg/05t.jpg) Common true katydid on a leaf in Lick Creek Park. College Station, Texas, June 8, 2022
![](../../pictures/archives/compress/2022/3181/jpeg/01t.jpg) Leaf of silk tree (Albizia julibrissin) in Bee Creek Park. College Station, Texas, June 24, 2022
![](../../pictures/archives/compress/2008/652/jpeg/02t.jpg) Ivy leaf Morning glory (Ipomoea cordatotriloba) in Lick Creek Park. College Station, June 15, 2008
![](../../pictures/archives/compress/2023/3353/jpeg/18t.jpg) Leaf of green dragon (Arisaema dracontium) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, March 4, 2023
![](../../pictures/archives/compress/2012/1069/jpeg/26t.jpg) Leaf of mustang grape (Vitis mustangensis) in Lick Creek Park. College Station, Texas, June 14, 2012
![](../../pictures/archives/compress/2022/3181/jpeg/02t.jpg) Pattern of a leaf of silk tree (Albizia julibrissin) in Bee Creek Park. College Station, Texas, June 24, 2022
![](../../pictures/archives/compress/2018/2290/jpeg/11t.jpg) Silver-leaf nightshade (Solanum elaeagnifolium) in Lick Creek Park. College Station, Texas, June 21, 2018
![](../../pictures/archives/compress/2018/2283/jpeg/23t.jpg) Leaf cutter ant highway across a sandy road in Lick Creek Park. College Station, Texas, June 6, 2018
![](../../pictures/archives/compress/2021/2994/jpeg/27t.jpg) Green lynx spider on a leaf of greenbrier on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
![](../../pictures/archives/compress/2008/652/jpeg/07t.jpg) Narrow-leaf water-primrose (Ludwigia octovalvis) with dew in Lick Creek Park. College Station, June 15, 2008
![](../../pictures/archives/compress/2018/2282/jpeg/30t.jpg) Rustweed (juniper leaf, Polypremum procumbens) on a new cutting in Lick Creek Park. College Station, Texas, June 4, 2018
![](../../pictures/archives/compress/2022/3172/jpeg/07t.jpg) Side view of common true katydid on a leaf in Lick Creek Park. College Station, Texas, June 8, 2022
![](../../pictures/archives/compress/2022/3135/jpeg/22t.jpg) A nest of leaf-cutting ants with green and black fruits of evening primrose (Oenothera)(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 20, 2022
![](../../pictures/archives/compress/2007/583/jpeg/24t.jpg) Young leaf of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
![](../../pictures/archives/compress/2022/3135/jpeg/21t.jpg) Unripe green and black fruits of evening primrose (Oenothera)(?) collected by leaf-cutting ants at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 20, 2022
![](../../pictures/archives/compress/2015/1547/jpeg/14t.jpg) Leaf of Spanish Needle (Bidens pilosa) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 20, 2015
![](../../pictures/archives/compress/2014/1501/jpeg/01t.jpg) Fat grasshopper on a leaf of Chenopodium on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
![](../../pictures/archives/compress/2008/650/jpeg/17t.jpg) Shrubby (narrow-leaf) water-primrose (Ludwigia octovalvis) flower in Lick Creek Park. College Station, Texas, June 8, 2008
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