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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
5492765 garlic mustard Alliaria petiolata
5492760 garlic mustard Alliaria petiolata
5492764 garlic mustard Alliaria petiolata
5492758 garlic mustard Alliaria petiolata
5492759 garlic mustard Alliaria petiolata
5468244 garlic mustard Alliaria petiolata large patch of flowering garlic mustard
5468245 garlic mustard Alliaria petiolata flowering plants
5468246 garlic mustard Alliaria petiolata
5468249 garlic mustard Alliaria petiolata Large patch of flowering garlic mustard
5468252 garlic mustard Alliaria petiolata
5468248 garlic mustard Alliaria petiolata large patch of flowering garlic mustard
5468250 garlic mustard Alliaria petiolata Large patch of flowering garlic mustard
5468251 garlic mustard Alliaria petiolata
5468241 garlic mustard Alliaria petiolata carpet of seedling garlic mustard plants
5468242 garlic mustard Alliaria petiolata carpet of seedling garlic mustard plants
5468243 garlic mustard Alliaria petiolata bolting second year plant
5468247 garlic mustard Alliaria petiolata flowering plant in foreground, background has 1st-year plants
5078026 garlic mustard Alliaria petiolata Using blow torches for control
1196098 white mustard Sinapis alba
1400158 garlic mustard Alliaria petiolata
1196099 white mustard Sinapis alba
1196032 garlic mustard Alliaria petiolata
1196080 wallflower mustard Erysimum cheiranthoides
1400159 garlic mustard Alliaria petiolata
1196070 damesrocket Hesperis matronalis
1216005 front range twinpod Physaria bellii close-up of flower cluster
1196100 white mustard Sinapis alba
1196217 yellow fieldcress Rorippa sylvestris
1196071 damesrocket Hesperis matronalis
1206015 heartleaf bittercress Cardamine cordifolia flowers
1196215 Austrian fieldcress Rorippa austriaca
1196213 Austrian fieldcress Rorippa austriaca
1205013 alpine pennycress Thlaspi montanum top view of whole plant in flower
0807018 heartleaf bittercress Cardamine cordifolia Pike and San Isabel National Forests, south-central Colorado
1196038 garlic mustard Alliaria petiolata 1st year rosettes
1205039 desert princesplume Stanleya pinnata several flowering plants on hillside
1216007 roundtip twinpod Physaria vitulifera close-up of flower clusters
0807081 front range twinpod Physaria bellii Pike and San Isabel National Forests, south-central Colorado
1209082 sanddune wallflower Erysimum capitatum var. capitatum single plant in typical habitat
1400154 garlic mustard Alliaria petiolata
1400160 garlic mustard Alliaria petiolata 1st year rosette stage.
1206014 heartleaf bittercress Cardamine cordifolia whole plant
1216006 roundtip twinpod Physaria vitulifera top view of single plant in typical habitat
1216014 roughseed clammyweed Polanisia dodecandra close-up of single flower cluster
1196022 flixweed Descurainia sophia
1209083 sanddune wallflower Erysimum capitatum var. capitatum close-up of single flower cluster
1209086 Pursh's wallflower Erysimum capitatum var. purshii single plant in typical habitat
1120164 Virginia pepperweed Lepidium virginicum June. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1120163 Virginia pepperweed Lepidium virginicum June. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1383040 flixweed Descurainia sophia
1383037 flixweed Descurainia sophia
1383038 flixweed Descurainia sophia
1383039 flixweed Descurainia sophia
1400157 garlic mustard Alliaria petiolata
1209084 sanddune wallflower Erysimum capitatum close-up of single flower cluster
1196216 Austrian fieldcress Rorippa austriaca
1205040 desert princesplume Stanleya pinnata close-up of single flower cluster
1209085 sanddune wallflower Erysimum capitatum single plant in typical habitat
1215024 alpine pennycress Thlaspi montanum single flowering plant in typical habitat
1209029 foothill bladderpod Lesquerella ludoviciana whole plant in typical habitat
1196039 garlic mustard Alliaria petiolata 1st year rosette
1209028 foothill bladderpod Lesquerella ludoviciana flowers and foliage
1196140 garlic mustard Alliaria petiolata
1209027 field pepperweed Lepidium campestre single plant in typical habitat
1196214 Austrian fieldcress Rorippa austriaca
1211027 golden draba Draba aurea
5422007 garlic mustard Alliaria petiolata Seed pods In May
5422009 garlic mustard Alliaria petiolata Seed pod In September
5422010 garlic mustard Alliaria petiolata In April
5422008 garlic mustard Alliaria petiolata In June
1196072 damesrocket Hesperis matronalis in flower
5379588 birdsrape mustard Brassica rapa with orange lenticels
5369973 garlic mustard Alliaria petiolata leaves and small flowers; Invasive plant, photo taken in Ramsey Co., MN
5369974 garlic mustard Alliaria petiolata single plant, flower; Invasive plant, photo taken in Ramsey Co., MN
5369975 garlic mustard Alliaria petiolata Invasive plant, photo taken in Ramsey Co., MN
5369976 garlic mustard Alliaria petiolata Invasive plant, photo taken in Ramsey Co., MN
5369977 garlic mustard Alliaria petiolata flower stage; Invasive plant, photo taken in Ramsey Co., MN
1519053 garlic mustard Alliaria petiolata
1196219 garlic mustard Alliaria petiolata

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