| 5454056 |
butternut |
Juglans cinerea |
butternut winter twig (Juglans cinerea); tree was recorded in Ontario's NHIC rare plant database; it was later tested and is in fact pure |
| 5492631 |
pin oak |
Quercus palustris |
pin oak, Quercus palustris; acorns developing in their 2nd year (bottom) and newly developed/current year acorns on current year's growth (top); June 14, 2012 |
| 5492622 |
Amur maple |
Acer ginnala |
Acer ginnala |
| 5492625 |
Amur maple |
Acer ginnala |
Acer ginnala |
| 5492624 |
Amur maple |
Acer ginnala |
Acer ginnala |
| 5492623 |
Amur maple |
Acer ginnala |
Acer ginnala |
| 5492630 |
bur oak |
Quercus macrocarpa |
bur oak, Quercus macrocarpa developing leaves and acorns; June 14, 2012 |
| 5492629 |
black cherry |
Prunus serotina |
mature black cherry, Prunus serotina |
| 5492635 |
littleleaf linden |
Tilia cordata |
littleleaf linden, Tilia cordata; June 14, 2012 |
| 5492634 |
littleleaf linden |
Tilia cordata |
littleleaf linden, Tilia cordata; June 14, 2012 |
| 5491409 |
American plum |
Prunus americana |
American plum, Prunus americana |
| 5491408 |
shagbark hickory |
Carya ovata |
shagbark hickory, Carya ovata |
| 5488145 |
northern catalpa |
Catalpa speciosa |
northern catalpa (Catalpa speciosa) whorled bud arrangement; Great Lakes Forestry Centre Arboretum |
| 5488144 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) spent female catkins |
| 5488143 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) male catkins |
| 5488138 |
catberry |
Ilex mucronata |
mountain holly (Ilex mucronata syn. Nemopanthus mucronatus) |
| 5488134 |
red maple |
Acer rubrum |
red maple (Acer rubrum) |
| 5488142 |
paper birch |
Betula papyrifera |
white birch (Betula papyrifera) spur shoots; large terminal bud of American mountain ash (Sorbus americana) clearly visible in the background |
| 5488139 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) |
| 5488140 |
red maple |
Acer rubrum |
red maple (Acer rubrum) |
| 5488137 |
northern red oak |
Quercus rubra |
northern red oak (Quercus rubra) |
| 5488136 |
black ash |
Fraxinus nigra |
black ash (Fraxinus nigra) |
| 5488141 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) |
| 5488135 |
black ash |
Fraxinus nigra |
black ash (Fraxinus nigra) |
| 5488132 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) |
| 5488133 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) |
| 5488131 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta); male catkins (January) |
| 5488130 |
American mountain ash |
Sorbus americana |
American mountain ash (Sorbus americana) |
| 5488129 |
American mountain ash |
Sorbus americana |
American mountain ash (Sorbus americana) |
| 5487711 |
common winterberry |
Ilex verticillata |
winterberry holly (Ilex verticillata) |
| 5487704 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvancium); characteristic terminal bud scars clearly evident marking annual growth; hardwood understory |
| 5487703 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvancium) |
| 5475819 |
common winterberry |
Ilex verticillata |
winterberry holly - Ilex verticillata - late August |
| 5475334 |
catberry |
Ilex mucronata |
Ilex mucronata - mountain-holly |
| 5475274 |
red elderberry |
Sambucus racemosa |
eastern red elderberry - Sambucus pubens - lower portion of leaf showing offset leaflet bases characteristic of our native Sambucus spp. - note purple on rachis and at base of leaflets characteristic of S. pubens |
| 5475276 |
red elderberry |
Sambucus racemosa |
eastern red elderberry - Sambucus pubens |
| 5475381 |
withe-rod |
Viburnum nudum var. cassinoides |
Viburnum cassinoides developing fruit |
| 5475333 |
catberry |
Ilex mucronata |
Ilex mucronata - mountain-holly |
| 5475332 |
striped maple |
Acer pensylvanicum |
Acer pensylvanicum - striped maple |
| 5475330 |
striped maple |
Acer pensylvanicum |
Acer pensylvanicum - striped maple sapling hanging out in the dense shade of white spruce |
| 5475273 |
red elderberry |
Sambucus racemosa |
eastern red elderberry - Sambucus pubens - central portion of leaf showing offset leaflet bases characteristic of our native Sambucus spp. |
| 5474918 |
catberry |
Ilex mucronata |
Ilex mucronata - mountain-holly; rare toothed leaves; purple petioles are a key ID feature for this species |
| 5474919 |
withe-rod |
Viburnum nudum var. cassinoides |
Viburnum cassinoides - wild raisin |
| 5474914 |
red maple |
Acer rubrum |
Acer rubrum |
| 5474509 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474514 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474512 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474513 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474510 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474511 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa |
| 5474472 |
glossy buckthorn |
Frangula alnus |
glossy buckthorn - Frangula alnus syn. Rhamnus frangula; late July; most plants with ripe fruit were still bearing flowers |
| 5474471 |
glossy buckthorn |
Frangula alnus |
glossy buckthorn - Frangula alnus syn. Rhamnus frangula; late July; most plants with ripe fruit were still bearing flowers |
| 5474422 |
Amur maple |
Acer ginnala |
Acer ginnala - Amur maple |
| 5474421 |
Amur maple |
Acer ginnala |
Acer ginnala - Amur maple |
| 5474420 |
Amur maple |
Acer ginnala |
Acer ginnala - Amur maple |
| 5474419 |
Amur maple |
Acer ginnala |
Acer ginnala - Amur maple |
| 5474418 |
vine maple |
Acer circinatum |
Acer circinatum - vine maple |
| 5474417 |
bigleaf maple |
Acer macrophyllum |
Acer macrophyllum - bigleaf maple |
| 5474412 |
bitternut hickory |
Carya cordiformis |
Carya cordiformis |
| 5474411 |
European buckthorn |
Rhamnus cathartica |
Rhamnus cathartica; note approx. 3-4 pairs of veins per leaf and sub-opposite leaf arrangement |
| 5474410 |
blue ash |
Fraxinus quadrangulata |
Fraxinus quadrangulata |
| 5474409 |
Kentucky coffeetree |
Gymnocladus dioicus |
Gymnocladus dioica bi-pinnately compound leaves |
| 5474258 |
silver maple |
Acer saccharinum |
Acer saccharinum; typical open growth form |
| 5474395 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana developing fruit |
| 5474405 |
hophornbeam |
Ostrya virginiana |
Ostrya virginiana developing fruit, early July |
| 5474401 |
butternut |
Juglans cinerea |
young butternut tree |
| 5474406 |
hophornbeam |
Ostrya virginiana |
Ostrya virginiana developing fruit, early July |
| 5474407 |
black walnut |
Juglans nigra |
Juglans nigra developing fruit, early July |
| 5444757 |
black chokeberry |
Photinia melanocarpa |
Aronia xprunifolia (A. arbutifolia x A. melanocarpa) purple chokeberry; note glandular 'dots' along midrib |
| 5473042 |
northern red oak |
Quercus rubra |
Quercus rubra (northern red oak) developing female flowers on 'scrub' oak near cliff edge; late May |
| 5444759 |
black chokeberry |
Photinia melanocarpa |
Aronia xprunifolia (A. arbutifolia x A. melanocarpa) purple chokeberry |
| 5444760 |
black chokeberry |
Photinia melanocarpa |
Aronia xprunifolia (A. arbutifolia x A. melanocarpa) purple chokeberry |
| 5444761 |
black chokeberry |
Photinia melanocarpa |
Aronia xprunifolia (A. arbutifolia x A. melanocarpa) purple chokeberry |
| 5474098 |
pawpaw |
Asimina triloba |
Asimina triloba (pawpaw) - rusty tomentose on newly emerged leaf petiole |
| 5474097 |
pawpaw |
Asimina triloba |
Asimina triloba (pawpaw) - rusty tomentose on newly emerged leaf petiole |
| 5472561 |
black chokeberry |
Photinia melanocarpa |
Aronia xprunifolia (A. arbutifolia x A. melanocarpa) purple chokeberry emerging leaves and flower buds |
| 5474139 |
black chokeberry |
Photinia melanocarpa |
Aronia x prunifolia (purple chokeberry) - note glandular dots along midrib |
| 5474116 |
catberry |
Ilex mucronata |
Ilex mucronata (mountain holly) showing distinctive purple petioles and entire leaf margins |
| 5474138 |
black chokeberry |
Photinia melanocarpa |
developing fruit of Aronia x prunifolia (purple chokeberry) |
| 5474099 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5474096 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood) |
| 5474095 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood) |
| 5474091 |
shagbark hickory |
Carya ovata |
Carya ovata (shagbark hickory) |
| 5474092 |
shagbark hickory |
Carya ovata |
Carya ovata (shagbark hickory) |
| 5473423 |
alternateleaf dogwood |
Cornus alternifolia |
Cornus alternifolia (alternate-leaf dogwood) |
| 5472359 |
Allegheny serviceberry |
Amelanchier laevis |
Amelanchier laevis (smooth serviceberry); Amelanchier key: http://sbe.umaine.edu/amelanchier/?page_id=25 |
| 5473422 |
alternateleaf dogwood |
Cornus alternifolia |
Cornus alternifolia (alternate-leaf dogwood) |
| 5473485 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (roundleaf dogwood) |
| 5473226 |
glossy buckthorn |
Frangula alnus |
Frangula alnus (syn. Rhamnus frangula), glossy buckthorn columnar form |
| 5473237 |
glossy buckthorn |
Frangula alnus |
Frangula alnus (syn. Rhamnus frangula), glossy buckthorn columnar form |
| 5473238 |
glossy buckthorn |
Frangula alnus |
Frangula alnus (syn. Rhamnus frangula), glossy buckthorn columnar form |
| 5473426 |
European buckthorn |
Rhamnus cathartica |
Rhamnus cathartica (common buckthorn) |
| 5473069 |
catberry |
Ilex mucronata |
male flower and developing leaves on Ilex mucronata (syn. Nemopanthus mucronatus), mountain-holly |
| 5473041 |
northern red oak |
Quercus rubra |
Quercus rubra (northern red oak) male flowers on 'scrub' oak near cliff edge; late May |
| 5473040 |
northern red oak |
Quercus rubra |
Quercus rubra (northern red oak) developing 2nd year acorn on 'scrub' oak near cliff edge; late May |
| 5472598 |
yellow birch |
Betula alleghaniensis |
Betula alleghaniensis (yellow birch) |
| 5472591 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472592 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472590 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472568 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472566 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472567 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood); leaves emerging mid-May; present on talus slope but predominantly in open woods beyond foot of talus |
| 5472399 |
smooth sumac |
Rhus glabra |
Rhus glabra (smooth sumac) buds breaking |
| 5472382 |
mountain alder |
Alnus viridis ssp. crispa |
Alnus viridis subsp. crispa (green alder/mountain alder) male and female catkins |
| 5472381 |
mountain alder |
Alnus viridis ssp. crispa |
Alnus viridis subsp. crispa (green alder/mountain alder) receptive female catkins |
| 5472366 |
Allegheny serviceberry |
Amelanchier laevis |
Amelanchier laevis (smooth serviceberry); Amelanchier key: http://sbe.umaine.edu/amelanchier/?page_id=25 |
| 5472367 |
Allegheny serviceberry |
Amelanchier laevis |
Amelanchier laevis (smooth serviceberry); Amelanchier key: http://sbe.umaine.edu/amelanchier/?page_id=25 |
| 5472361 |
Allegheny serviceberry |
Amelanchier laevis |
Amelanchier laevis (smooth serviceberry); Amelanchier key: http://sbe.umaine.edu/amelanchier/?page_id=25 |
| 5472360 |
Allegheny serviceberry |
Amelanchier laevis |
Amelanchier laevis (smooth serviceberry); Amelanchier key: http://sbe.umaine.edu/amelanchier/?page_id=25 |
| 5474032 |
northern catalpa |
Catalpa speciosa |
Catalpa speciosa (northern catalpa) |
| 5474031 |
northern catalpa |
Catalpa speciosa |
Catalpa speciosa (northern catalpa) |
| 5474029 |
northern catalpa |
Catalpa speciosa |
Catalpa speciosa (northern catalpa) |
| 5474028 |
northern catalpa |
Catalpa speciosa |
Catalpa speciosa (northern catalpa) |
| 5472119 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) mature bark |
| 5472118 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5472113 |
American mountain ash |
Sorbus americana |
American mountain-ash (Sorbus americana) leaves emerging |
| 5472112 |
American mountain ash |
Sorbus americana |
American mountain-ash (Sorbus americana) leaves emerging |
| 5473971 |
sassafras |
Sassafras albidum |
Sassafras albidum seedling |
| 5473970 |
sassafras |
Sassafras albidum |
Sassafras albidum seedlings |
| 5473967 |
Norway maple |
Acer platanoides |
Norway maple (Acer platanoides) developing seeds |
| 5473965 |
European buckthorn |
Rhamnus cathartica |
Rhamnus cathartica (common/European buckthorn) - note subopposite leaf arrangement, a characteristic trait |
| 5472104 |
hophornbeam |
Ostrya virginiana |
male ironwood (Ostrya virginiana) catkins expanding |
| 5472101 |
smooth sumac |
Rhus glabra |
remnant smooth sumac (Rhus glabra) fruit |
| 5472100 |
smooth sumac |
Rhus glabra |
smooth sumac (Rhus glabra) winter twig |
| 5473666 |
black oak |
Quercus velutina |
Quercus velutina (black oak) |
| 5473665 |
black oak |
Quercus velutina |
Quercus velutina (black oak) |
| 5473664 |
black oak |
Quercus velutina |
Quercus velutina (black oak); leaf attachment |
| 5473661 |
American plum |
Prunus americana |
Prunus americana (American plum); leaf attachment |
| 5473660 |
American plum |
Prunus americana |
Prunus americana (American plum) |
| 5473659 |
American plum |
Prunus americana |
Prunus americana (American plum) |
| 5473638 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana (blue-beech) |
| 5473634 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana (blue-beech) |
| 5473635 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana (blue-beech) |
| 5473633 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana (blue-beech); leaves resemble those of Betula alleghaniensis (doubly serrated leaf margin and straight veins) but are much thinner (much like those of Ostrya virginiana) |
| 5473630 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) mature tree |
| 5473629 |
eastern redbud |
Cercis canadensis |
Cercis canadensis (redbud) |
| 5473628 |
eastern redbud |
Cercis canadensis |
Cercis canadensis (redbud) |
| 5473627 |
eastern redbud |
Cercis canadensis |
Cercis canadensis (redbud) |
| 5473625 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473626 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) mature tree |
| 5473624 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473623 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473621 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473622 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473620 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473619 |
slippery elm |
Ulmus rubra |
Ulmus rubra (slippery elm) |
| 5473617 |
cherry birch |
Betula lenta |
Betula lenta (cherry birch) |
| 5473618 |
cherry birch |
Betula lenta |
Betula lenta (cherry birch) |
| 5473616 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5473615 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5473614 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5473612 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5473613 |
yellow-poplar |
Liriodendron tulipifera |
Liriodendron tulipifera (tulip-tree) |
| 5473604 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaved dogwood) |
| 5473466 |
hedge maple |
Acer campestre |
Acer campestre (hedge maple) developing fruit |
| 5473467 |
redosier dogwood |
Cornus sericea |
Cornus sericea (syn. Cornus stolonifera); red osier |
| 5472063 |
cherry birch |
Betula lenta |
cherry birch (Betula lenta) seedling |
| 5472090 |
Canadian plum |
Prunus nigra |
Canada plum (Prunus nigra) flower buds |
| 5472089 |
Canadian plum |
Prunus nigra |
Canada plum (Prunus nigra) flower buds |
| 5472088 |
Canadian plum |
Prunus nigra |
Canada plum (Prunus nigra) flower buds |
| 5472085 |
withe-rod |
Viburnum nudum var. cassinoides |
wild raisin (Viburnum cassinoides) buds breaking |
| 5472560 |
yellow birch |
Betula alleghaniensis |
Betula alleghaniensis (yellow birch) |
| 5472075 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) terminal bud breaking |
| 5472072 |
yellow-poplar |
Liriodendron tulipifera |
tulip tree seedling (Liriodendron tulipifera) |
| 5472068 |
cherry birch |
Betula lenta |
cherry birch (Betula lenta) seedling |
| 5472067 |
cherry birch |
Betula lenta |
cherry birch (Betula lenta) seedling |
| 5472064 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) female flower |
| 5472062 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) seedling |
| 5472061 |
dwarf hackberry |
Celtis tenuifolia |
dwarf hackberry (Celtis tenuifolia) seedling |
| 5472060 |
honeylocust |
Gleditsia triacanthos |
honey locust (Gleditsia triacanthos) seedlings |
| 5472059 |
dwarf hackberry |
Celtis tenuifolia |
dwarf hackberry (Celtis tenuifolia) seedling |
| 5472058 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) seedling |
| 5472057 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) seedling |
| 5472054 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) seedling |
| 5472053 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) remnant fruiting structures |
| 5472051 |
dwarf hackberry |
Celtis tenuifolia |
dwarf hackberry (Celtis tenuifolia) seedling |
| 5473461 |
roundleaf dogwood |
Cornus rugosa |
Cornus rugosa (round-leaf dogwood) |
| 5473458 |
mountain maple |
Acer spicatum |
Acer spicatum (mountain maple) characteristic upright flower spike |
| 5473417 |
alternateleaf dogwood |
Cornus alternifolia |
Cornus alternifolia (alternate-leaf dogwood) |
| 5472050 |
dwarf hackberry |
Celtis tenuifolia |
dwarf hackberry (Celtis tenuifolia) seedling |
| 5472048 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) seedling |
| 5473188 |
catberry |
Ilex mucronata |
Ilex mucronata (syn. Nemopanthus mucronatus; mountain-holly) female flower |
| 5468092 |
boxelder |
Acer negundo |
Manitoba maples double samara's held over winter |
| 5468119 |
speckled alder |
Alnus incana ssp. rugosa |
Male and Female catkins of a speckled alder during winter |
| 5468155 |
speckled alder |
Alnus incana ssp. rugosa |
Speckled alder silhouette |
| 5468135 |
northern red oak |
Quercus rubra |
Young red oak silhouette retaining its leaves over winter |
| 5468128 |
speckled alder |
Alnus incana ssp. rugosa |
bark of a pin cherry |
| 5461495 |
wayfaringtree |
Viburnum lantana |
Wayfaring tree (Viburnum lantana) 'naked' terminal buds and flower bud; January |
| 5454120 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) male catkins |
| 5447069 |
boxelder |
Acer negundo |
Manitoba maple/box-elder winter twig (Acer negundo) |
| 5444933 |
shingle oak |
Quercus imbricaria |
Shingle Oak, Quercus imbricaria (September 1, 2011) |
| 5471244 |
American sycamore |
Platanus occidentalis |
Fruiting body of a Sycamore. |
| 5471245 |
American sycamore |
Platanus occidentalis |
Twigs and buds of a Sycamore. |
| 5471246 |
American sycamore |
Platanus occidentalis |
Silhouette of a Sycamore. |
| 5471247 |
American sycamore |
Platanus occidentalis |
Sycamore leaf. |
| 5471243 |
American sycamore |
Platanus occidentalis |
Bark of a Sycamore. |
| 5471226 |
butternut |
Juglans cinerea |
Terminal bud of a Butternut with leaf scars. |
| 5471227 |
butternut |
Juglans cinerea |
Silhouette of a Butternut. |
| 5468162 |
red elderberry |
Sambucus racemosa |
buds and branch of an eastern red elderberry |
| 5471225 |
butternut |
Juglans cinerea |
Bark of a Butternut. |
| 5468089 |
red maple |
Acer rubrum |
Buds of a Red maple |
| 5471204 |
bitternut hickory |
Carya cordiformis |
A Bitternut hickory tree |
| 5471202 |
bitternut hickory |
Carya cordiformis |
Bark of a Bitternut hickory |
| 5471203 |
bitternut hickory |
Carya cordiformis |
New growth on twig and bud arrangement. |
| 5471199 |
black maple |
Acer nigrum |
Bark of a black maple |
| 5471200 |
black maple |
Acer nigrum |
Twig and bud arrangement |
| 5471201 |
black maple |
Acer nigrum |
black maple tree |
| 5468144 |
quaking aspen |
Populus tremuloides |
trembling aspen buds beginning to bloom |
| 5468142 |
common chokecherry |
Prunus virginiana |
terminal bud |
| 5468087 |
red maple |
Acer rubrum |
Red maple opposite branching and clustered buds |
| 5468098 |
paper birch |
Betula papyrifera |
White birch catkins and branch form. |
| 5468159 |
willow |
Salix spp. |
willow tree beginning to bloom |
| 5468148 |
alternateleaf dogwood |
Cornus alternifolia |
silhouette of a alternate-leaf dogwood |
| 5468147 |
alternateleaf dogwood |
Cornus alternifolia |
branches and buds. |
| 5468133 |
American elm |
Ulmus americana |
Branching pattern of a white elm |
| 5468141 |
American elm |
Ulmus americana |
branching pattern of a white elm |
| 5468091 |
silver maple |
Acer saccharinum |
Silver maple's drooping S-shaped branches |
| 5468164 |
American beech |
Fagus grandifolia |
Terminal bud of an American beech |
| 5468090 |
silver maple |
Acer saccharinum |
Silver maple silhouette |
| 5468120 |
speckled alder |
Alnus incana ssp. rugosa |
Buds and twig |
| 5468127 |
boxelder |
Acer negundo |
bud and branch of a manitoba maple |
| 5468143 |
common chokecherry |
Prunus virginiana |
Bark of a choke cherry tree. |
| 5468126 |
crabapple and apple |
Malus spp. |
Terminal bud of an apple tree |
| 5468149 |
alternateleaf dogwood |
Cornus alternifolia |
branching of an alternate-leaf dogwood |
| 5468153 |
willow |
Salix spp. |
Alternate arranged buds and terminal bud of a willow |
| 5468154 |
paper birch |
Betula papyrifera |
New growth and terminal bud of a white birch |
| 5468163 |
American beech |
Fagus grandifolia |
An american beech retaining its leaves over winter |
| 5468158 |
balsam poplar |
Populus balsamifera |
terminal bud of a balsam poplar |
| 5468088 |
red maple |
Acer rubrum |
Bark of a Red maple |
| 5468086 |
red maple |
Acer rubrum |
Red maple entire |
| 5468093 |
boxelder |
Acer negundo |
Bark of a Manitoba maple |
| 5468094 |
boxelder |
Acer negundo |
Manitoba maple silhouette |
| 5468085 |
striped maple |
Acer pensylvanicum |
twig and buds of a striped maple |
| 5468099 |
paper birch |
Betula papyrifera |
White birch silhouette |
| 5468100 |
white ash |
Fraxinus americana |
White ash terminal bud and leaf scar |
| 5468102 |
northern red oak |
Quercus rubra |
terminal bud of a red oak |
| 5468110 |
pin cherry |
Prunus pensylvanica |
Terminal buds of a pin cherry |
| 5468111 |
quaking aspen |
Populus tremuloides |
Trembling aspen silhouette |
| 5468112 |
quaking aspen |
Populus tremuloides |
Bark of a trembling aspen |
| 5468118 |
speckled alder |
Alnus incana ssp. rugosa |
Bark of a speckled alder |
| 5468121 |
American elm |
Ulmus americana |
Bark of a mature white elm |
| 5468115 |
mountain ash |
Sorbus spp. |
New growth and terminal bud of a Mountain Ash |
| 5468116 |
mountain ash |
Sorbus spp. |
|
| 5468123 |
American elm |
Ulmus americana |
terminal bud and twig of a white elm |
| 5468124 |
green ash |
Fraxinus pennsylvanica |
Bark of a Red ash |
| 5468125 |
green ash |
Fraxinus pennsylvanica |
New growth of a red ash |
| 5468122 |
quaking aspen |
Populus tremuloides |
buds and twig of a trembling aspen |
| 5468129 |
black ash |
Fraxinus nigra |
Terminal bud of a black ash tree |
| 5468130 |
black ash |
Fraxinus nigra |
bark of a young black ash |
| 5468131 |
northern red oak |
Quercus rubra |
A red oak retaining its leaves over winter. |
| 5468132 |
northern red oak |
Quercus rubra |
Bark of a red oak |
| 5468083 |
yellow birch |
Betula alleghaniensis |
Bark of a mature Yellow birch |
| 5468084 |
yellow birch |
Betula alleghaniensis |
Twig of a Yellow birch |
| 5468137 |
American elm |
Ulmus americana |
Silhouette of a white elm tree. |
| 5468136 |
Carolina poplar |
Populus x canadensis |
Carolina poplar silhouette's |
| 5468138 |
Carolina poplar |
Populus x canadensis |
Bark of a carolina poplar |
| 5468139 |
Carolina poplar |
Populus x canadensis |
buds of a carolina poplar |
| 5468140 |
Carolina poplar |
Populus x canadensis |
twigs and and buds of a Carolina poplar |
| 5468134 |
paper birch |
Betula papyrifera |
Mature bark of a white birch |
| 5468161 |
striped maple |
Acer pensylvanicum |
striped maple bark |
| 5468160 |
quaking aspen |
Populus tremuloides |
buds and twig of a trembling aspen |
| 5468156 |
balsam poplar |
Populus balsamifera |
young balsam poplar silhouette |
| 5468157 |
balsam poplar |
Populus balsamifera |
bark of a balsam poplar |
| 5468165 |
American beech |
Fagus grandifolia |
American beech bark |
| 5468535 |
crabapple and apple |
Malus spp. |
crabapple, Malus sp. |
| 5468534 |
crabapple and apple |
Malus spp. |
crabapple, Malus sp. |
| 5468546 |
pin cherry |
Prunus pensylvanica |
pin cherry, Prunus pensylvanica |
| 5468547 |
pin cherry |
Prunus pensylvanica |
pin cherry, Prunus pensylvanica |
| 5468774 |
black locust |
Robinia pseudoacacia |
black locust, Robinia pseudoacacia |
| 5468775 |
black locust |
Robinia pseudoacacia |
black locust, Robinia pseudoacacia |
| 5468545 |
willow |
Salix spp. |
willow, Salix spp. |
| 5468524 |
boxelder |
Acer negundo |
Manitoba maple, Acer negundo |
| 5468525 |
boxelder |
Acer negundo |
Manitoba maple, Acer negundo |
| 5468502 |
red maple |
Acer rubrum |
red maple, Acer rubrum |
| 5468503 |
red maple |
Acer rubrum |
red maple, Acer rubrum |
| 5468548 |
mountain ash |
Sorbus spp. |
mountain-ash, Sorbus spp. |
| 5468549 |
mountain ash |
Sorbus spp. |
mountain-ash, Sorbus spp. |
| 5468512 |
crabapple and apple |
Malus spp. |
apple, Malus spp. |
| 5468513 |
crabapple and apple |
Malus spp. |
apple, Malus spp. |
| 5468514 |
honeylocust |
Gleditsia triacanthos |
honey locust, Gleditsia triacanthos |
| 5468515 |
honeylocust |
Gleditsia triacanthos |
honey locust, Gleditsia triacanthos
thorn |
| 5468504 |
paper birch |
Betula papyrifera |
white birch, Betula papyrifera |
| 5468505 |
paper birch |
Betula papyrifera |
white birch, Betula papyrifera |
| 5468520 |
white poplar |
Populus alba |
european white poplar, Populus alba |
| 5468521 |
white poplar |
Populus alba |
european white poplar, Populus alba |
| 5468518 |
quaking aspen |
Populus tremuloides |
trembling aspen, Populus tremuloides |
| 5468519 |
quaking aspen |
Populus tremuloides |
trembling aspen, Populus tremuloides |
| 5468522 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder, Alnus incana subsp. rugosa |
| 5468523 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder, Alnus incana subsp. rugosa
catkin |
| 5468526 |
white ash |
Fraxinus americana |
white ash, Fraxinus americana |
| 5468527 |
white ash |
Fraxinus americana |
white ash, Fraxinus americana |
| 5468500 |
northern red oak |
Quercus rubra |
red oak, Quercus rubra |
| 5468501 |
northern red oak |
Quercus rubra |
red oak, Quercus rubra |
| 5468544 |
willow |
Salix spp. |
willow, Salix spp. |
| 5468506 |
American elm |
Ulmus americana |
white elm, Ulmus americana silhouette |
| 5468507 |
American elm |
Ulmus americana |
white elm, Ulmus americana |
| 5465774 |
withe-rod |
Viburnum nudum var. cassinoides |
wild raisin (Viburnum cassinoides) winter twigs showing flower buds on twig tips |
| 5465775 |
withe-rod |
Viburnum nudum var. cassinoides |
wild raisin (Viburnum cassinoides) winter twig showing flower bud on twig tip |
| 5461498 |
withe-rod |
Viburnum nudum var. cassinoides |
wild raisin (Viburnum cassinoides); note leaf margins may be entire or serrated (highly variable) |
| 5461510 |
common chokecherry |
Prunus virginiana |
choke cherry (Prunus virginiana) leaf base showing characteristic glands (extra-floral nectaries) on petiole |
| 5461496 |
wayfaringtree |
Viburnum lantana |
Wayfaring tree (Viburnum lantana) 'naked' vegetative buds; January |
| 5461515 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) flower spike with developing samaras |
| 5461657 |
withe-rod |
Viburnum nudum var. cassinoides |
wild raisin (Viburnum cassinoides) winter twig; note each terminal bud with two bud scales separated exposing flower buds - compare with similar species in winter, nannyberry, Viburnum lentago |
| 5465776 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) winter twig showing characteristic stalked vegetative buds and preformed male and female flowers (catkins) extending from the twig tip |
| 5461516 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) flower spikes |
| 5461547 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) winter twig |
| 5461548 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) |
| 5461514 |
Norway maple |
Acer platanoides |
Norway maple (Acer platanoides) leaf petiole base oozing characteristic milky sap |
| 5461501 |
sugar maple |
Acer saccharum |
sugar maple (Acer saccharum) sapling showing transition of previous to current year's growth |
| 5461499 |
sugar maple |
Acer saccharum |
sugar maple (Acer saccharum) winter twig |
| 5461500 |
sugar maple |
Acer saccharum |
sugar maple (Acer saccharum) winter twig showing a lateral bud and leaf scar |
| 5461502 |
common chokecherry |
Prunus virginiana |
choke cherry (Prunus virginiana) winter twig |
| 5461503 |
common chokecherry |
Prunus virginiana |
choke cherry (Prunus virginiana) winter twig |
| 5461504 |
common chokecherry |
Prunus virginiana |
choke cherry (Prunus virginiana) winter twig |
| 5461507 |
Norway maple |
Acer platanoides |
Norway maple (Acer platanoides) leaf; note bristle-tipped lobes |
| 5461549 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) |
| 5461550 |
sugar maple |
Acer saccharum |
sugar maple (Acer saccharum) winter twig |
| 5461553 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) |
| 5461551 |
red maple |
Acer rubrum |
red maple (Acer rubrum) winter twig |
| 5461511 |
silver maple |
Acer saccharinum |
mature silver maple (Acer saccharinum) samaras |
| 5455090 |
glossy buckthorn |
Frangula alnus |
introduced alder buckthorn winter twig (Frangula alnus, syn. Rhamnus frangula) |
| 5455091 |
glossy buckthorn |
Frangula alnus |
introduced alder buckthorn winter twig and remnant fruit (Frangula alnus, syn. Rhamnus frangula) |
| 5455089 |
glossy buckthorn |
Frangula alnus |
introduced alder buckthorn winter twig (Frangula alnus, syn. Rhamnus frangula) |
| 5461509 |
boxelder |
Acer negundo |
recently emerged Manitoba maple (Acer negundo) leaves |
| 5461517 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5461552 |
pin cherry |
Prunus pensylvanica |
young pin cherry (Prunus pensylvanica) |
| 5461506 |
pin cherry |
Prunus pensylvanica |
pin cherry leaf (Prunus pensylvanica) |
| 5461512 |
silver maple |
Acer saccharinum |
silver maple (Acer saccharinum) |
| 5461554 |
sugar maple |
Acer saccharum |
mature sugar maple (Acer saccharum) |
| 5461508 |
mountain maple |
Acer spicatum |
emerging mountain maple (Acer spicatum) leaves |
| 5461513 |
common chokecherry |
Prunus virginiana |
choke cherry (Prunus virginiana) |
| 5461519 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) |
| 5461518 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis); note straight veins |
| 5461520 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5459331 |
beaked hazelnut |
Corylus cornuta |
beaked hazel winter buds (Corylus cornuta) |
| 5459332 |
quaking aspen |
Populus tremuloides |
trembling apsen (Populus tremuloides) winter twig showing vegetative buds (smaller buds) and flower buds (larger buds) |
| 5459330 |
mountain maple |
Acer spicatum |
characteristic mountain maple (Acer spicatum) bark pattern |
| 5458750 |
bigtooth aspen |
Populus grandidentata |
upper bole of mature largetooth aspen (Populus grandidentata) showing characteristic orange cast |
| 5458751 |
bigtooth aspen |
Populus grandidentata |
upper bole of mature largetooth aspen (Populus grandidentata) showing characteristic orange cast |
| 5458752 |
bigtooth aspen |
Populus grandidentata |
lower bole of mature largetooth aspen (Populus grandidentata) showing characteristic deeply fissured bark with orange tinge in cracks |
| 5458907 |
balsam poplar |
Populus balsamifera |
balsam poplar (Populus balsamifera) current annual growth winter twig |
| 5458908 |
balsam poplar |
Populus balsamifera |
balsam poplar (Populus balsamifera) current annual growth winter twig |
| 5454171 |
wayfaringtree |
Viburnum lantana |
Wayfaring tree (Viburnum lantana) 'naked' terminal buds and flower bud; December |
| 5454172 |
crabapple and apple |
Malus spp. |
apple (Malus sp.) winter twig |
| 5455689 |
pin cherry |
Prunus pensylvanica |
pin cherry sapling (Prunus pensylvanica) |
| 5455690 |
pin cherry |
Prunus pensylvanica |
mature pin cherry (Prunus pensylvanica) |
| 5455691 |
pin cherry |
Prunus pensylvanica |
pin cherry sapling (Prunus pensylvanica) |
| 5455693 |
common chokecherry |
Prunus virginiana |
chokecherry (Prunus virginiana) flowers; early June |
| 5455692 |
common chokecherry |
Prunus virginiana |
"pre-ripened" chokecherry fruit (Prunus virginiana); mid-August |
| 5455694 |
black cherry |
Prunus serotina |
black cherry flowers (Prunus serotina); mid-June |
| 5454163 |
Carolina poplar |
Populus x canadensis |
Carolina poplar (Populus xcanadensis) showing distinctive vegetative buds (will produce leaves) |
| 5454164 |
Carolina poplar |
Populus x canadensis |
Carolina poplar (Populus xcanadensis) showing distinctive reproductive buds (will produce catkins) |
| 5454165 |
Carolina poplar |
Populus x canadensis |
Carolina poplar (Populus xcanadensis) showing distinctive reproductive buds (will produce catkins) |
| 5454111 |
paper birch |
Betula papyrifera |
white birch (Betula papyrifera) |
| 5454116 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) winter twig - note zig-zag twig and divergent lateral buds (45 degrees) |
| 5454855 |
silver maple |
Acer saccharinum |
silver maple (Acer saccharinum) winter twig |
| 5454851 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) preformed male and female catkins and spent female catkins (January) |
| 5454852 |
speckled alder |
Alnus incana ssp. rugosa |
speckled alder (Alnus incana subsp. rugosa) preformed male catkins (the long structures) and preformed female catkins (small structures above male catkins); January |
| 5454853 |
green ash |
Fraxinus pennsylvanica |
red ash (Fraxinus pennsylvanica) winter twig |
| 5454854 |
green ash |
Fraxinus pennsylvanica |
mature red ash (Fraxinus pennsylvanica); mature bark difficult to tell apart from white ash - key was being able to look at current-year twig |
| 5454133 |
American basswood |
Tilia americana |
basswood (Tilia americana) winter twig and fruit (bract with nutlets) |
| 5455092 |
wych elm |
Ulmus glabra |
mature wych elm (Ulmus glabra) |
| 5454110 |
black ash |
Fraxinus nigra |
black ash (Fraxinus nigra) - note gap between terminal bud and first set of lateral buds (white ash lateral buds are tight) - also note lateral bud placement above the leaf scar (white ash lateral bud sits in a notch) |
| 5454059 |
black walnut |
Juglans nigra |
black walnut winter twig (Juglans nigra) |
| 5454474 |
Norway maple |
Acer platanoides |
mature Norway maple (Acer platanoides) |
| 5454124 |
hedge maple |
Acer campestre |
hedge maple (Acer campestre) winter twig and strongly divergent double samara fruit. |
| 5454169 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) winter twig and remnant fruits (double samaras) |
| 5454197 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) winter twig |
| 5454170 |
beaked hazelnut |
Corylus cornuta |
male catkins on beaked hazel (Corylus cornuta) winter twig |
| 5454179 |
redosier dogwood |
Cornus sericea |
red osier (Cornus sericea) winter twigs |
| 5454174 |
European buckthorn |
Rhamnus cathartica |
European buckthorn (Rhamnus cathartica) winter twig and fruit; note sub-opposite lateral buds and dead twig tip |
| 5454185 |
boxelder |
Acer negundo |
Manitoba maple/boxelder (Acer negundo) winter twig |
| 5454181 |
boxelder |
Acer negundo |
Manitoba maple/boxelder (Acer negundo) characteristic remnant fruit (double samaras) on a female tree |
| 5454177 |
common winterberry |
Ilex verticillata |
winterberry holly (Ilex verticillata) fruit; December |
| 5454117 |
hophornbeam |
Ostrya virginiana |
mature ironwood (Ostrya virginiana) |
| 5454118 |
hophornbeam |
Ostrya virginiana |
young ironwood (Ostrya virginiana) |
| 5454195 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) winter twig; note divergent lateral buds |
| 5454196 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) winter twig; note divergent lateral buds |
| 5454193 |
red maple |
Acer rubrum |
red maple (Acer rubrum) winter twig with flower buds |
| 5454119 |
paper birch |
Betula papyrifera |
white birch (Betula papyrifera) winter twig - note white resin dots along twig tip (like a salted pretzel) and lateral buds placed tight to the stem |
| 5454115 |
paper birch |
Betula papyrifera |
white birch (Betula papyrifera) winter twig - note white resin dots along twig tip (like a salted pretzel) and lateral buds placed tight to the stem |
| 5454137 |
Norway maple |
Acer platanoides |
Norway maple winter twig (Acer platanoides) |
| 5454047 |
white oak |
Quercus alba |
white oak winter twig (Quercus alba) (introduced to private woodlot) |
| 5454048 |
white oak |
Quercus alba |
white oak winter twig (Quercus alba) (introduced to private woodlot) |
| 5454126 |
honeylocust |
Gleditsia triacanthos |
characteristic developing thorn of honey locust (Gleditsia triacanthos) |
| 5454123 |
hedge maple |
Acer campestre |
hedge maple (Acer campestre) winter twig |
| 5454122 |
American basswood |
Tilia americana |
mature basswood (Tilia americana) with sucker growth around stump |
| 5454134 |
green ash |
Fraxinus pennsylvanica |
red ash winter twig (Fraxinus pennsylvanica) - current annual growth pubescent |
| 5454129 |
boxelder |
Acer negundo |
Manitoba maple (Acer negundo) - typical poor form |
| 5454130 |
boxelder |
Acer negundo |
Manitoba maple (Acer negundo) - typical poor form |
| 5454109 |
black ash |
Fraxinus nigra |
black ash (Fraxinus nigra) - note gap between terminal bud and first set of lateral buds (white ash lateral buds are tight) - also note lateral bud placement above the leaf scar (white ash lateral bud sits in a notch) |
| 5454049 |
northern red oak |
Quercus rubra |
northern red oak winter twig (Quercus rubra) |
| 5454057 |
butternut |
Juglans cinerea |
butternut winter twig (Juglans cinerea); tree was recorded in Ontario's NHIC rare plant database |
| 5454198 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) winter twig |
| 5454108 |
striped maple |
Acer pensylvanicum |
hardwood understory striped maple (Acer pensylvanicum) winter twig; bud scale scars (series of 3 lines) indicate each year of growth |
| 5454168 |
mountain maple |
Acer spicatum |
mountain maple (Acer spicatum) winter twig |
| 5454132 |
bur oak |
Quercus macrocarpa |
bur oak (Quercus macrocarpa) |
| 5454199 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum) winter twig |
| 5454162 |
Carolina poplar |
Populus x canadensis |
mature Carolina poplar (Populus xcanadensis) |
| 5454192 |
sugar maple |
Acer saccharum |
sugar maple (Acer saccharum) |
| 5454058 |
butternut |
Juglans cinerea |
butternut (Juglans cinerea); tree was recorded in Ontario's NHIC rare plant database |
| 5454055 |
butternut |
Juglans cinerea |
butternut winter twig (Juglans cinerea); tree was recorded in Ontario's NHIC rare plant database |
| 5454050 |
northern red oak |
Quercus rubra |
northern red oak winter twig (Quercus rubra) |
| 5454200 |
northern red oak |
Quercus rubra |
mature northern red oak (Quercus rubra) |
| 5454135 |
green ash |
Fraxinus pennsylvanica |
red ash winter twig (Fraxinus pennsylvanica) - current annual growth pubescent |
| 5454136 |
green ash |
Fraxinus pennsylvanica |
red ash winter twig (Fraxinus pennsylvanica) - current annual growth pubescent |
| 5445639 |
blue ash |
Fraxinus quadrangulata |
blue ash (Fraxinus quadrangulata) leaf rachis and leaflets |
| 5445636 |
blue ash |
Fraxinus quadrangulata |
blue ash (Fraxinus quadrangulata) |
| 5445856 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) winter twig |
| 5445919 |
red elderberry |
Sambucus racemosa |
eastern red elderberry winter twig (Sambucus racemosa) |
| 5445920 |
red elderberry |
Sambucus racemosa |
eastern red elderberry fruit (Sambucus racemosa) |
| 5445844 |
American beech |
Fagus grandifolia |
American beech winter twig (Fagus grandifolia) |
| 5445839 |
white ash |
Fraxinus americana |
white ash samaras(Fraxinus americana) |
| 5445840 |
white ash |
Fraxinus americana |
white ash winter twig (Fraxinus americana) |
| 5445838 |
white ash |
Fraxinus americana |
white ash winter twig (Fraxinus americana) |
| 5445841 |
European ash |
Fraxinus excelsior |
Globe European Ash (Fraxinus excelsior 'Nana') |
| 5445842 |
European ash |
Fraxinus excelsior |
Globe European Ash (Fraxinus excelsior 'Nana') |
| 5445843 |
European ash |
Fraxinus excelsior |
Globe European Ash (Fraxinus excelsior 'Nana') |
| 5445649 |
yellow buckeye |
Aesculus flava |
yellow buckeye (Aesculus flava) |
| 5445845 |
American beech |
Fagus grandifolia |
American beech (Fagus grandifolia) fruit (a nut) and foliage |
| 5445846 |
American beech |
Fagus grandifolia |
American beech (Fagus grandifolia) |
| 5445857 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) twig showing characteristic short petiole |
| 5445796 |
pawpaw |
Asimina triloba |
pawpaw (Asimina triloba) |
| 5445797 |
pawpaw |
Asimina triloba |
pawpaw (Asimina triloba) |
| 5445647 |
dwarf hackberry |
Celtis tenuifolia |
dwarf hackberry (Celtis tenuifolia) |
| 5445641 |
black locust |
Robinia pseudoacacia |
black locust (Robinia pseudoacacia) |
| 5445643 |
black locust |
Robinia pseudoacacia |
black locust (Robinia pseudoacacia) |
| 5445644 |
black locust |
Robinia pseudoacacia |
black locust (Robinia pseudoacacia) |
| 5445858 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) twig showing characteristic short petiole |
| 5445859 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) showing characteristic "ear-like" teeth on upper portion of leaf |
| 5445793 |
pawpaw |
Asimina triloba |
pawpaw (Asimina triloba) |
| 5445794 |
pawpaw |
Asimina triloba |
pawpaw (Asimina triloba) |
| 5445795 |
pawpaw |
Asimina triloba |
pawpaw (Asimina triloba); characteristic looping pattern of main veins |
| 5445792 |
American sycamore |
Platanus occidentalis |
sycamore (Platanus occidentalis) branch |
| 5445788 |
American sycamore |
Platanus occidentalis |
sycamore (Platanus occidentalis) |
| 5445789 |
American sycamore |
Platanus occidentalis |
sycamore (Platanus occidentalis) |
| 5445790 |
American sycamore |
Platanus occidentalis |
underside of sycamore (Platanus occidentalis) leaf |
| 5445791 |
American sycamore |
Platanus occidentalis |
sycamore (Platanus occidentalis) fruiting structure (diagnostic single ball) |
| 5445650 |
yellow buckeye |
Aesculus flava |
yellow buckeye (Aesculus flava) |
| 5445652 |
Ohio buckeye |
Aesculus glabra |
Ohio Buckeye (Aesculus glabra) |
| 5445651 |
Ohio buckeye |
Aesculus glabra |
Ohio Buckeye (Aesculus glabra) |
| 5445637 |
blue ash |
Fraxinus quadrangulata |
blue ash (Fraxinus quadrangulata) |
| 5445638 |
blue ash |
Fraxinus quadrangulata |
blue ash (Fraxinus quadrangulata) |
| 5445635 |
blue ash |
Fraxinus quadrangulata |
blue ash (Fraxinus quadrangulata) branch |
| 5445648 |
common hackberry |
Celtis occidentalis |
Northern Hackberry (Celtis occidentalis) |
| 5445646 |
Kentucky yellowwood |
Cladrastis kentukea |
Kentucky Yellowwood (Cladrastis kentukea) |
| 5445645 |
Kentucky yellowwood |
Cladrastis kentukea |
Kentucky Yellowwood (Cladrastis kentukea) |
| 5445640 |
blackgum |
Nyssa sylvatica |
black gum (Nyssa sylvatica) |
| 5445511 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) |
| 5444931 |
chinkapin oak |
Quercus muehlenbergii |
chinkuapin oak, Quercus muehlenbergii (note swollen acorn cap scales) |
| 5444930 |
chinkapin oak |
Quercus muehlenbergii |
chinkuapin oak, Quercus muehlenbergii |
| 5444925 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5444924 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5444943 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch) |
| 5444941 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch) |
| 5444942 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch) |
| 5444940 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch), September 1 (2011) |
| 5444932 |
shingle oak |
Quercus imbricaria |
Shingle Oak, Quercus imbricaria |
| 5444870 |
eastern cottonwood |
Populus deltoides ssp. deltoides |
eastern cottonwood (Populus deltoides subsp. deltoides) showing characteristic multiple glandular structures where petiole meets leaf base |
| 5444866 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) female flower; March 18 (2009) |
| 5444864 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) female flower and male catkins; May 3 (2011) |
| 5444865 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) female flower; May 8 (2011) |
| 5444871 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra); June 6 |
| 5443323 |
American elm |
Ulmus americana |
American (white) elm developing samaras |
| 5444751 |
common winterberry |
Ilex verticillata |
winterberry holly (Ilex verticillata); October 3 |
| 5444752 |
black ash |
Fraxinus nigra |
young black ash (Fraxinus nigra) tree showing characteristic corky bark |
| 5444764 |
black ash |
Fraxinus nigra |
mature black ash (Fraxinus nigra) showing characteristic scaly bark |
| 5444371 |
Canadian plum |
Prunus nigra |
Canada plum (Prunus nigra) typical leaf and ripening fruit |
| 5444763 |
black ash |
Fraxinus nigra |
black ash (Fraxinus nigra) showing opposite leaf arrangement and characteristic gap between terminal bud and first set of leaves and axillary buds |
| 5444744 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum), May 29 |
| 5444742 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum), May 29 |
| 5444743 |
striped maple |
Acer pensylvanicum |
striped maple (Acer pensylvanicum), May 29 |
| 5444372 |
Canadian plum |
Prunus nigra |
Canada plum (Prunus nigra); May 22 |
| 5444373 |
Canadian plum |
Prunus nigra |
Canada Plum (Prunus nigra); May 22 |
| 5444293 |
white ash |
Fraxinus americana |
White ash germination. Seed was removed from samara then seed coat was removed. Seed was cold stratified for ca. 90 days only - germination occurred within 7 days in petri dish. |
| 5444369 |
mountain alder |
Alnus viridis ssp. crispa |
green alder (Alnus viridis subsp. crispa); mid-May; receptive female catkins on long, erect stalks; male 'pollen' catkins hanging; last years female catkins in foreground |
| 5444370 |
mountain alder |
Alnus viridis ssp. crispa |
green alder (Alnus viridis subsp. crispa) |
| 5443320 |
northern red oak |
Quercus rubra |
northern red oak (Quercus rubra) radicle penetrating leaf litter (May 12) |
| 5443324 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) developing samaras |
| 5443325 |
wych elm |
Ulmus glabra |
wych elm (Ulmus glabra) developing samaras |
| 5443499 |
yellow birch |
Betula alleghaniensis |
yellow birch regeneration (Betula alleghaniensis) on remnant stump |
| 5443580 |
slippery elm |
Ulmus rubra |
slippery elm (Ulmus rubra) - twig very rough |
| 5443579 |
slippery elm |
Ulmus rubra |
slippery elm (Ulmus rubra) - note the branching of the veins and obovate shape - leaf surface was very rough |
| 5443577 |
rock elm |
Ulmus thomasii |
rock elm (Ulmus thomasii) |
| 5443578 |
rock elm |
Ulmus thomasii |
rock elm (Ulmus thomasii) - note the lack of branching on the veins and the large number of veins "packed" in |
| 5443501 |
paper birch |
Betula papyrifera |
white birch regeneration (Betula papyrifera) on remnant log |
| 5443500 |
yellow birch |
Betula alleghaniensis |
yellow birch regeneration (Betula alleghaniensis) on remnant log |
| 5443502 |
yellow birch |
Betula alleghaniensis |
yellow birch regeneration (Betula alleghaniensis) on remnant stump |
| 5443503 |
yellow birch |
Betula alleghaniensis |
mature yellow birch (Betula alleghaniensis) on side hill |
| 5443335 |
black cherry |
Prunus serotina |
black cherry (Prunus serotina) leaf underside (June 30) |
| 5443321 |
American elm |
Ulmus americana |
American elm (Ulmus americana) flowers (May 12) |
| 5443322 |
green ash |
Fraxinus pennsylvanica |
red ash (Fraxinus pennsylvanca) female flowers |
| 5383836 |
feltleaf willow |
Salix alaxensis |
|
| 5383859 |
woolly willow |
Salix lanata |
|
| 5383860 |
woolly willow |
Salix lanata |
|
