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USDA Forest Service

USDA Forest Service

The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run."


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Image Subject Name Scientific Name Description
5488352 maple Acer spp.
5487993 maple Acer spp.
5484484 American chestnut Castanea dentata
5487980 white violet Viola renifolia
5477663 common greenshield lichen Flavoparmelia caperata
5485300 sweetgum Liquidambar spp.
5484488 American chestnut Castanea dentata
5484487 American chestnut Castanea dentata
5485299 sassafras Sassafras spp.
5476403 ramp Allium tricoccum
5476399 ramp Allium tricoccum
5484044 American chestnut Castanea dentata An American Chestnut (Castanea dentata), with catkins in full bloom, grows alongside the Quabbin Reservoir, in Massachusetts, USA. 
5485682 dogwood Cornus spp.
5485663 hemlock woolly adelgid Adelges tsugae
5484492 American chestnut Castanea dentata A healthy American chestnut tree (Castanea dentata). 
5485685 white-tailed deer Odocoileus virginianus
5482990 erythrina Erythrina spp.
5484045 American chestnut Castanea dentata
5484479 American chestnut Castanea dentata
5488021 fire
5482977 sweet wakerobin Trillium vaseyi
5482979 morning glory Ipomoea jaegeri
5482972 golden tickseed Coreopsis tinctoria var. tinctoria
5488009 hemlock woolly adelgid Adelges tsugae
5482970 flowering dogwood Cornus florida
5488038 pitcherplants Sarracenia spp.
5487692 dogwood anthracnose Discula destructiva
5482968 roundleaf sundew Drosera rotundifolia The sundew plant has glands which secrete a tiny droplet of clear mucilaginous substance on the ends of tiny tentacles that the plant uses to trap insects. 
5488365 flowering dogwood Cornus florida
5482965 purple loosestrife Lythrum salicaria
5488357 thistle Cirsium spp.
5488003 bald eagle Haliaeetus leucocephalus
5488351 pitcherplants Sarracenia spp. A small purple iris grows among bright green Sarracenia (pitcherplants). 
5488345 prescribed fire
5483003 prescribed fire
5482919 marbled orbweaver Araneus marmoreus
5487990 Venus flytrap Dionaea muscipula
5482957 pricklypear/cholla Opuntia spp.
5488263 creeping phlox Phlox stolonifera
5488264 creeping phlox Phlox stolonifera
5488265 creeping phlox Phlox stolonifera
5488012 bashful wakerobin Trillium catesbaei
5488011 bashful wakerobin Trillium catesbaei
5484519 Microspirid mite Caesarodispus klepzigi For more information on Caesarodispus klepzigi, visit: http://www.srs.fs.usda.gov/pubs/ja/ja_khaustov001.pdf
5477664 common greenshield lichen Flavoparmelia caperata
5486105 common greenshield lichen Flavoparmelia caperata
5488035 mountain laurel Kalmia latifolia
5488032 pricklypear/cholla Opuntia spp.
5482956 blueberry Vaccinium spp.
5487987 cardinalflower Lobelia cardinalis The cardinalflower can be found in wet soils from New Brunswick to Minnesota, and south toward the Gulf of Mexico. 
5486108 lumber and building materials
5487984 red trillium Trillium erectum Red trillium is found in rich, moist woods from Manitoba, Canada east to Nova Scotia, south to Georgia and Alabama, and north to Illinois and Michigan.? Red trillium, also known as Stinking Benjamin, has one nodding flower with an unpleasant odor rising from a stalk above the leaves. The flower is about 6.5 cm wide, with three maroon or reddish-brown petals. The leaves can be up to 17.5 cm long and are net-veined, rather than parallel veined, which is more typical of the lily family. Red trillium blooms from April-June, and can reach 20-40 cm in height. 
5487983 pink lady's-slipper Cypripedium acaule Pink lady's slipper is a large, showy wildflower belonging to the orchid family. It has two opposite basal leaves with conspicuous parallel veins and a large flower at the end of an erect stalk. The flower is magenta to whitish-pink; sometimes the whitish pink flowers will have darker pink venation. Rarely the flower may be all white. This plant grows 6 to 15 inches tall and flowers generally between May and July?.  Pink lady’s slipper lives in a variety of habitats, growing in mixed hardwood coniferous forests of pine and hemlock on rocky/mossy slopes, and in semi-open or in deep humus and acidic but well-drained soil under birch and other deciduous trees of eastern United States forests.?
5487979 squirrel corn Dicentra canadensis An inhabitant of the eastern hardwood forest, Dicentra canadensis seems to prefer rich soils with rocky outcrops. The deep ravines and river valleys of Minnesota's southeast counties represent the extreme northwest extent of Squirrel Corn's North American range. It is by no means common in that area. The DNR says it is now most at risk from invasive species, earthworms in particular, and was listed as a Special Concern species in 1984.?
5487978 red trillium Trillium erectum Red trillium is found in rich, moist woods from Manitoba, Canada east to Nova Scotia, south to Georgia and Alabama, and north to Illinois and Michigan.? Red trillium, also known as Stinking Benjamin, has one nodding flower with an unpleasant odor. The flower is about 6.5 cm wide, with three maroon or reddish-brown petals. The leaves can be up to 17.5 cm long, and are net-veined, rather than parallel veined, which is more typical of the lily family. The red trillium flowers from April to June, and grows from 20-40 cm in height. 
5486107 mulching
5476127 hemlock woolly adelgid Adelges tsugae
5475606 tricolored heron Egretta tricolor The tricolored heron, formerly known as the Louisiana heron in the United States. 
1374436 horse (feral) Equus caballus (feral type) Close-up of face
5424264 nuclear polyhedrosis virus Nucleopolyhedrovirus N/A Group of sawfly larvae killed by polyhesdrosis virus; larvae were on Red pine, Pinus resinosa  
5424265 nuclear polyhedrosis virus Nucleopolyhedrovirus N/A Virus killed larvae
5468291 European buckthorn Rhamnus cathartica Fruit in winter
5443558 entomophagus fungi Entomophaga maimaiga Dead gypsy moth caterpillar, killed by Entomophaga maimaga (fungal pathogen).    
5443560 entomophagus fungi Entomophaga maimaiga Dead gypsy moth caterpillar killed by Entomophaga maimaiga (fungal pathogen).   
5443561 entomophagus fungi Entomophaga maimaiga ??Dead gypsy moth caterpillar killed by Entomophaga maimaigo (fungal pathogen)
5443563 entomophagus fungi Entomophaga maimaiga Dead gypsy moth caterpillar killed by Entomophaga maimaga (fungal pathogen). 
5370013 metalic wood-boring beetles Dicerca spp. Mating pair of adults on the bark of a red pine
5424270 oak apple gall Amphibolips spp. Two galls, one with a exit hole. 
5424271 oak apple gall Amphibolips spp. Two galls, one with an exit hole.
5424272 oak apple gall Amphibolips spp. Two galls, one with an exit hole
1398066 woolly elm aphid Eriosoma americanum Leaf gall
1211086 field chickweed Cerastium arvense close-up of flowers
5202073 scarlet elfcup Sarcoscypha austriaca Common name of scarlet cup, found in very early spring in a northern hardwood stand, Dunn Co., WI
5424245 Eriophyid mites Eriophyes spp. Felt-like leaf gall on river birch caused by an eriophyid mite in the genus Eriophyes. 
5424241 emerald ash borer Agrilus planipennis Early-stage emerald ash borer gallery
5424251 larch sawfly Pristiphora erichsonii Group of larvae
5424252 larch sawfly Pristiphora erichsonii single larva
5424254 larch sawfly Pristiphora erichsonii single larva
5424243 elm leafminer Kaliofenusa ulmi Leafminer larvae inside leaf mines
5424244 elm leafminer Kaliofenusa ulmi Blister like leaf mine, larvae can be seen inside the mines.  
5424246 Eriophyid mites Eriophyes spp. Felt-like leaf gall on river birch caused by a eriophyid mite, genus Eriophyes. 
5424247 spiny looper Phigalia titea Larva
5424248 spiny looper Phigalia titea caterpillar
5424249 fletcher scale Parthenolecanium fletcheri Scale bodies on white-cedar foliage, mid-summer
5424250 fletcher scale Parthenolecanium fletcheri Scale bodies on foliage of northern white-cedar
5424257 European pine sawfly Neodiprion sertifer Cluster of larvae
5424279 eastern chipmunk Tamias striatus adult close-up

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