| 5030037 |
maple |
Acer spp. |
Sugar maple and red maple (Acer saccharum, A. rubrum) in fall color. |
| 5046011 |
California white oak |
Quercus lobata |
|
| 1301077 |
American elm |
Ulmus americana |
Street lined with mature, healthy American elm. |
| 1397098 |
birch |
Betula spp. |
|
| 1397020 |
Appalachian barren strawberry |
Waldsteinia fragarioides |
|
| 1397023 |
Indianpipe |
Monotropa uniflora |
|
| 1397016 |
mountain laurel |
Kalmia latifolia |
|
| 1397024 |
southern catalpa |
Catalpa bignonioides |
|
| 5046088 |
staghorn sumac |
Rhus typhina |
Fall foliage of staghorn sumac |
| 5061072 |
currant |
Ribes spp. |
Foliage of a Ribes sp. growing naturally in Wisconsin |
| 1427044 |
tanoak |
Lithocarpus densiflorus |
|
| 1397017 |
American elm |
Ulmus americana |
|
| 5047023 |
willow |
Salix spp. |
Mature willow |
| 1397010 |
wild strawberry |
Fragaria virginiana |
|
| 1377010 |
narrowleaf spring-beauty |
Claytonia virginica |
|
| 5041012 |
American elm |
Ulmus americana |
An American elm with a snow-covered crown |
| 5036081 |
sweetfern |
Comptonia peregrina |
|
| 5036007 |
ash |
Fraxinus spp. |
A large, snow covered ash tree |
| 5041024 |
American elm |
Ulmus americana |
An American elm with a snowy crown |
| 1397011 |
paper birch |
Betula papyrifera |
|
| 1427043 |
tanoak |
Lithocarpus densiflorus |
|
| 1397018 |
currant |
Ribes spp. |
|
| 1427042 |
tanoak |
Lithocarpus densiflorus |
|
| 1377032 |
mayapple |
Podophyllum peltatum |
A view of the underside of a mayapple. The berry, which ripens in the summer, is the only part of the plant that is not poisonous. |
| 1377026 |
eastern false rue anemone |
Enemion biternatum |
|
| 1377030 |
Indianpipe |
Monotropa uniflora |
With erect fruit capsules |
| 1377033 |
mayapple |
Podophyllum peltatum |
A group of mayapples. These perennial woodland plants arise early in the spring before most of the trees have leafed out. |
| 1377034 |
bloodroot |
Sanguinaria canadensis |
Roots showing characteristics which gives this plant its common name "bloodroot" |
| 1377035 |
bloodroot |
Sanguinaria canadensis |
Roots of these plants bleed a blood-red sap when wounded. |
| 1377021 |
sharp-lobed hepatica |
Hepatica nobilis var. acuta |
|
| 1377015 |
dutchman's breeches |
Dicentra cucullaria |
|
| 1377005 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Witches' brooms and top mortality |
| 1377006 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
| 1377007 |
yellow marsh marigold |
Caltha palustris |
|
| 1377008 |
yellow marsh marigold |
Caltha palustris |
|
| 1377001 |
wood anemone |
Anemone quinquefolia |
|
| 1377002 |
eastern false rue anemone |
Enemion biternatum |
|
| 1377003 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
| 1377004 |
yellow birch |
Betula alleghaniensis |
|
| 5035084 |
currant |
Ribes spp. |
Ribes fruits |
| 5058048 |
currant |
Ribes spp. |
Young Ribes foliage |
| 5046025 |
currant |
Ribes spp. |
Foliage |
| 5046029 |
wild sarsaparilla |
Aralia nudicaulis |
Wild sarsaparilla foliage in fall. |
| 5036069 |
wild strawberry |
Fragaria virginiana |
Wild strawberry flowers |
| 5045011 |
eastern cottonwood |
Populus deltoides |
Large branches and trees that failed during a windstorm |
| 5045046 |
Pacific madrone |
Arbutus menziesii |
Pacific madrone twigs and foliage |
| 5045041 |
Pacific madrone |
Arbutus menziesii |
Flowers of Pacific madrone |
| 5039024 |
Pacific madrone |
Arbutus menziesii |
Leaves and fruits of Pacific madrone, with an unidentified leaf blotch |
| 5045042 |
Pacific madrone |
Arbutus menziesii |
Leaves of Pacific madrone |
| 5045045 |
Pacific madrone |
Arbutus menziesii |
Pacific madrone |
| 5055069 |
Pacific madrone |
Arbutus menziesii |
Pacific madrone |
| 5253090 |
miconia |
Miconia calvescens |
Miconia invasive seed in Hawaii |
| 5253091 |
miconia |
Miconia calvescens |
Miconia calvescens foliage. Invasive weed. |
| 5054077 |
quaking aspen |
Populus tremuloides |
Dead aspen, recently killed |
| 5252049 |
Tatarian honeysuckle |
Lonicera tatarica |
Immature fruits of Tatarian honeysuckle |
| 5252050 |
Tatarian honeysuckle |
Lonicera tatarica |
Immature flowers of Tatarian honeysuckle |
| 5252051 |
Tatarian honeysuckle |
Lonicera tatarica |
Fruits of Tatarian honeysuckle. |
| 5039011 |
Norway maple |
Acer platanoides |
A large urban tree with interesting architecture, in dormant season |
| 5038083 |
green ash |
Fraxinus pennsylvanica |
Healthy urban green ash |
| 5038082 |
green ash |
Fraxinus pennsylvanica |
Helathy open-grown green ash |
| 5045012 |
bur oak |
Quercus macrocarpa |
Large horizontal branch development in bur oak |
| 5045024 |
littleleaf linden |
Tilia cordata |
Fruits of European linden. |
| 5045025 |
littleleaf linden |
Tilia cordata |
Emerging foliage of European linden. |
| 5055032 |
littleleaf linden |
Tilia cordata |
Flowers of European linden. |
| 5252069 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252070 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252071 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers close up |
| 5252072 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252073 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252074 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252075 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252076 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252077 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252078 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Maile flowers |
| 5252079 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252080 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252081 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252082 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5252083 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Male flowers |
| 5045076 |
northern red oak |
Quercus rubra |
Male catkins of red oak |
| 5045097 |
northern pin oak |
Quercus ellipsoidalis |
Form of a pin oak |
| 5252036 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5038066 |
American elm |
Ulmus americana |
An elm-lined street in St. Paul, MN, before most of the trees were killed by Dutch elm disease. |
| 5038067 |
American elm |
Ulmus americana |
An elm-lined street in St. Paul, MN, before most of the trees were killed by Dutch elm disease. |
| 5038068 |
American elm |
Ulmus americana |
American elm lining a street at the Minnesota State Fairgrounds. |
| 5044031 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Shoots of black spruce dwarf mistletoe. |
| 5044032 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Shoots of black spruce dwarf mistletoe. |
| 5044035 |
California huckleberry |
Vaccinium ovatum |
Evergreen huckleberry. |
| 5252032 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252033 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252034 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flower of black spruce dwarf mistletoe (close-up). |
| 5252035 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252037 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252038 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252039 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252040 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Female flowers of black spruce dwarf mistletoe. |
| 5252047 |
wild geranium |
Geranium maculatum |
|
| 5044069 |
gorse |
Ulex europaeus |
Plant habit in Hawaii |
| 5053047 |
American elm |
Ulmus americana |
An open-grown American elm |
| 5042092 |
paper birch |
Betula papyrifera |
White birch and jack pine (Pinus banksiana) stand |
| 5251050 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5251051 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5251052 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5251053 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5251054 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5251055 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups and female flowers of black spruce dwarf mistletoe. |
| 5251056 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups and male flowers of black spruce dwarf mistletoe. |
| 5251057 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups and new shoots of black spruce dwarf mistletoe. |
| 5251058 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Basal cups of black spruce dwarf mistletoe. |
| 5042093 |
paper birch |
Betula papyrifera |
Birch stand in northeastern Minnesota. |
| 5042094 |
paper birch |
Betula papyrifera |
Birch stand in northeastern Minnesota. |
| 5049043 |
European buckthorn |
Rhamnus cathartica |
Leaves of common buckthorn. |
| 5049044 |
European buckthorn |
Rhamnus cathartica |
Leaves of common buckthorn. |
| 5297089 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for blight research in Minnesota.; Person in image: Charlie Burnham and Peter Bedker. |
| 5297090 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for chestnut blight research in Minnesota. Person in image:Peter Bedker |
| 5297091 |
American chestnut |
Castanea dentata |
Collecting chestnut fruits for chestnut blight research in Minnesota. Person in image: Charlie Burnham and Peter Bedker |
| 5297099 |
American chestnut |
Castanea dentata |
Healthy chestnut in a stand infected with chestnut blight. |
| 5298004 |
American chestnut |
Castanea dentata |
Foliage of American chestnut |
| 5298005 |
American chestnut |
Castanea dentata |
American chestnut trees in Wisconsin. |
| 5043099 |
coast live oak |
Quercus agrifolia |
Leaves of coast live oak |
| 5044001 |
American sycamore |
Platanus occidentalis |
Sycamore leaves and fruit. |
| 5034069 |
American elm |
Ulmus americana |
A tree sculpture created from a dead American elm outside a library |
| 5034071 |
littleleaf linden |
Tilia cordata |
|
| 5034072 |
littleleaf linden |
Tilia cordata |
|
| 5034073 |
littleleaf linden |
Tilia cordata |
|
| 5033021 |
paper birch |
Betula papyrifera |
Young birch stand; A stand of young white birch in northern Minnesota |
| 5033029 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Dwarf mistletoe on black spruce in northern Minnesota |
| 5033030 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
A large dwarf mistletoe broom on black spruce in a northern Minnesota bog. |
| 5033031 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Dwarf mistletoe on black spruce in a northern Minnesota bog. |
| 5033032 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
A large dwarf mistletoe broom on black spruce in a northern Minnesota bog. |
| 5033034 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
A group of black spruce infected with dwarf mistletoe in a Minnesota bog. |
| 5033035 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Black spruce infected with dwarf mistletoe in a Minnesota bog. |
| 5033091 |
American elm |
Ulmus americana |
An American elm with a fluted trunk. |
| 5033088 |
ponderosa pine dwarf mistletoe |
Arceuthobium vaginatum |
Dwarf mistletoe shoots on Ponderosa pine |
| 5034019 |
common hackberry |
Celtis occidentalis |
|
| 5032039 |
mistletoes |
Phoradendron spp. |
True mistletoe on oak |
| 5031069 |
currant |
Ribes spp. |
|
| 5035033 |
hazel alder |
Alnus serrulata |
|
| 5035034 |
hazel alder |
Alnus serrulata |
|
| 5031027 |
bristly dewberry |
Rubus hispidus |
|
| 5031030 |
cane fruit (blackberry, raspberry) |
Rubus spp. |
Rubus with abundant prickles. |
| 5032099 |
quaking aspen |
Populus tremuloides |
Regenerating aspen stand following clearcut in eastern Minnesota. |
| 5032100 |
quaking aspen |
Populus tremuloides |
Regenerating aspen stand follwing clearcut in Eastern Minnesota. |
| 5051052 |
dodder |
Cuscuta spp. |
Dodder on small oak tree in west-centeral Mexico |
| 5030036 |
maple |
Acer spp. |
Sugar maple and red maple (Acer saccharum, A. rubrum) on Ottawa National Forest in fall color |
| 5038027 |
aspen/poplar |
Populus spp. |
male flowers |
| 5031070 |
weeping willow |
Salix babylonica |
|
| 5028005 |
maple |
Acer spp. |
fall color |
| 5032094 |
white ash |
Fraxinus americana |
winter buds |
| 5048064 |
American beech |
Fagus grandifolia |
Healthy bark of American beech |
| 5031032 |
red maple |
Acer rubrum |
|
| 5031007 |
mayapple |
Podophyllum peltatum |
|
| 5031008 |
mayapple |
Podophyllum peltatum |
|
| 5031009 |
mayapple |
Podophyllum peltatum |
|
| 5031022 |
black cherry |
Prunus serotina |
|
| 5031024 |
bur oak |
Quercus macrocarpa |
|
| 5031025 |
bur oak |
Quercus macrocarpa |
|
| 5031026 |
northern red oak |
Quercus rubra |
|
| 5029027 |
red elderberry |
Sambucus racemosa var. racemosa |
Developing fruits |
| 5029029 |
northern red oak |
Quercus rubra |
Emerging red oak leaves. |
| 5029030 |
northern red oak |
Quercus rubra |
Emerging leaves of a tree in the red oak group. |
| 5029067 |
common hackberry |
Celtis occidentalis |
small tree |
| 5029069 |
maple |
Acer spp. |
Young maple stand. |
| 5029070 |
sharp-lobed hepatica |
Hepatica nobilis var. acuta |
|
| 5029071 |
sharp-lobed hepatica |
Hepatica nobilis var. acuta |
|
| 5029072 |
sharp-lobed hepatica |
Hepatica nobilis var. acuta |
|
| 5029073 |
sharp-lobed hepatica |
Hepatica nobilis var. acuta |
|
| 5029100 |
eastern false rue anemone |
Enemion biternatum |
|
| 5030001 |
eastern false rue anemone |
Enemion biternatum |
|
| 5028010 |
paper birch |
Betula papyrifera |
Peeling bark of white (paper) birch. |
| 5028011 |
paper birch |
Betula papyrifera |
Peeling bark of white (paper) birch. |
| 5028013 |
paper birch |
Betula papyrifera |
birch stand in northern Minnesota |
| 5028022 |
cane fruit (blackberry, raspberry) |
Rubus spp. |
thorns and flowers |
| 5028023 |
cane fruit (blackberry, raspberry) |
Rubus spp. |
thorns and flowers |
| 5028024 |
cane fruit (blackberry, raspberry) |
Rubus spp. |
|
| 5028025 |
leatherleaf |
Chamaedaphne calyculata |
Chamaedaphne calyculata (leatherleaf) in blume. |
| 5028045 |
bur oak |
Quercus macrocarpa |
Nice specimen tree on University of Minnesota campus. |
| 5028052 |
yellow marsh marigold |
Caltha palustris |
One of the first spring flowers in the Midwest. |
| 5028053 |
yellow marsh marigold |
Caltha palustris |
|
| 5028054 |
yellow marsh marigold |
Caltha palustris |
|
| 5028055 |
yellow marsh marigold |
Caltha palustris |
|
| 5028074 |
narrowleaf spring-beauty |
Claytonia virginica |
A very early-flowering species |
| 5028075 |
narrowleaf spring-beauty |
Claytonia virginica |
One of the first spring flowers visible in the Midwest. |
| 5029005 |
dandelion |
Taraxacum spp. |
Dandelion flower in seed. |
| 5029011 |
dutchman's breeches |
Dicentra cucullaria |
|
| 5029012 |
dutchman's breeches |
Dicentra cucullaria |
|
| 5029022 |
pineland dwarf mistletoe |
Arceuthobium vaginatum ssp. cryptopodum |
Shoots on main stem of Ponderosa pine. |
| 5029023 |
pineland dwarf mistletoe |
Arceuthobium vaginatum ssp. cryptopodum |
Cluster of fruits on Ponderosa pine. |
| 5027074 |
rue anemone |
Thalictrum thalictroides |
|
| 5027075 |
rue anemone |
Thalictrum thalictroides |
|
| 5027076 |
rue anemone |
Thalictrum thalictroides |
|
| 5027089 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
Arceuthobium pusillum witches brooms |
| 5027090 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
witch's brooms |
| 5027098 |
quaking aspen |
Populus tremuloides |
Fall color in trembling aspen |
| 5027099 |
aspen/poplar |
Populus spp. |
fall color |
| 5027087 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
male shoots; Arceuthobium pusillum male shoots |
| 5027072 |
American elm |
Ulmus americana |
in early spring |
| 5027073 |
rue anemone |
Thalictrum thalictroides |
|
| 1397082 |
white oak |
Quercus alba |
large white oak in urban setting next to house |
| 5035044 |
birch |
Betula spp. |
|
| 5042053 |
white oak |
Quercus alba |
|
| 5036071 |
sugar maple |
Acer saccharum |
|
| 5032015 |
sugar maple |
Acer saccharum |
|
| 5032016 |
sugar maple |
Acer saccharum |
abundant regeneration |
| 5046078 |
sweet bay |
Laurus nobilis |
sooty mold and leaf symptoms |
| 5045049 |
maple |
Acer spp. |
|
| 5045050 |
maple |
Acer spp. |
|
| 5035057 |
red maple |
Acer rubrum |
|
| 5035058 |
red maple |
Acer rubrum |
|
| 5039026 |
maple |
Acer spp. |
backlit leaves |
| 5045071 |
Norway maple |
Acer platanoides |
|
| 5045073 |
Norway maple |
Acer platanoides |
|
| 5034062 |
Labrador tea |
Ledum palustre |
|
| 5034013 |
wintergreen |
Gaultheria procumbens |
|
| 5034014 |
wintergreen |
Gaultheria procumbens |
|
| 5033020 |
birch |
Betula spp. |
|
| 5049045 |
bur oak |
Quercus macrocarpa |
|
| 5051053 |
dodder |
Cuscuta spp. |
|
| 5051076 |
running strawberry bush |
Euonymus obovatus |
|
| 5046024 |
rhododendrons and azaleas |
Rhododendron spp. |
|
| 5031071 |
bloodroot |
Sanguinaria canadensis |
|
| 5031072 |
bloodroot |
Sanguinaria canadensis |
|
| 5031073 |
bloodroot |
Sanguinaria canadensis |
|
| 5031074 |
bloodroot |
Sanguinaria canadensis |
|
| 5040083 |
rhododendrons and azaleas |
Rhododendron spp. |
|
| 5040084 |
rhododendrons and azaleas |
Rhododendron spp. |
|
| 5031023 |
white oak |
Quercus alba |
|
| 5034088 |
Indianpipe |
Monotropa uniflora |
|
| 5045027 |
tanoak |
Lithocarpus densiflorus |
|
| 5045028 |
tanoak |
Lithocarpus densiflorus |
|
| 5045029 |
tanoak |
Lithocarpus densiflorus |
|
| 5049055 |
yellow marsh marigold |
Caltha palustris |
|
| 5049062 |
northern catalpa |
Catalpa speciosa |
|
| 5038030 |
croftonweed |
Ageratina adenophora |
|
| 5038031 |
croftonweed |
Ageratina adenophora |
|
| 5043095 |
coast live oak |
Quercus agrifolia |
|
| 5043097 |
coast live oak |
Quercus agrifolia |
|
| 5043098 |
coast live oak |
Quercus agrifolia |
|
| 5043043 |
bur oak |
Quercus macrocarpa |
acorns |
| 5043045 |
bur oak |
Quercus macrocarpa |
|
| 5043052 |
California black oak |
Quercus kelloggii |
and leaves |
| 5043053 |
California black oak |
Quercus kelloggii |
|
| 5042074 |
American beech |
Fagus grandifolia |
|
| 5042086 |
sweet bay |
Laurus nobilis |
|
| 5042091 |
American beech |
Fagus grandifolia |
beech thicket |
| 5038007 |
bur oak |
Quercus macrocarpa |
|
| 5033014 |
yellow birch |
Betula alleghaniensis |
|
| 5032070 |
American beech |
Fagus grandifolia |
|
| 5032074 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
| 5032075 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
| 5032076 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
| 5032077 |
eastern dwarf mistletoe |
Arceuthobium pusillum |
|
