| 5492630 |
bur oak |
Quercus macrocarpa |
bur oak, Quercus macrocarpa developing leaves and acorns; June 14, 2012 |
| 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 |
| 5488131 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta); male catkins (January) |
| 5474395 |
American hornbeam |
Carpinus caroliniana |
Carpinus caroliniana developing fruit |
| 5474405 |
hophornbeam |
Ostrya virginiana |
Ostrya virginiana developing fruit, early July |
| 5474406 |
hophornbeam |
Ostrya virginiana |
Ostrya virginiana developing fruit, early July |
| 5474404 |
American hazelnut |
Corylus americana |
Corylus americana developing fruit, early July |
| 5474403 |
American hazelnut |
Corylus americana |
Corylus americana |
| 5474402 |
American hazelnut |
Corylus americana |
Corylus americana petiole showing characteristic stiff glandular hairs |
| 5473042 |
northern red oak |
Quercus rubra |
Quercus rubra (northern red oak) developing female flowers on 'scrub' oak near cliff edge; late May |
| 5474117 |
bog birch |
Betula pumila |
Betula pumila (bog birch) |
| 5474140 |
bog birch |
Betula pumila |
Betula pumila (bog birch) |
| 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) |
| 5472358 |
bog birch |
Betula pumila |
Betula pumila (bog birch) female catkin |
| 5472349 |
bog birch |
Betula pumila |
Betula pumila (bog birch) female catkin |
| 5472351 |
bog birch |
Betula pumila |
Betula pumila (bog birch) catkins (pinkish-red stigmas are visible on female catkins) |
| 5472348 |
bog birch |
Betula pumila |
Betula pumila (bog birch) male catkin |
| 5472381 |
mountain alder |
Alnus viridis ssp. crispa |
Alnus viridis subsp. crispa (green alder/mountain alder) receptive female catkins |
| 5472369 |
bog birch |
Betula pumila |
Betula pumila (bog birch) catkins (pinkish-red stigmas are visible on female catkins) |
| 5472368 |
bog birch |
Betula pumila |
Betula pumila (bog birch) developing male catkin |
| 5472352 |
bog birch |
Betula pumila |
Betula pumila (bog birch) female catkins |
| 5472350 |
bog birch |
Betula pumila |
Betula pumila (bog birch) female catkins |
| 5472341 |
bog birch |
Betula pumila |
developing male catkin on Betula pumila (bog birch) |
| 5472120 |
American beech |
Fagus grandifolia |
American beech buds expanding early spring (Fagus grandifolia) |
| 5472118 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5472104 |
hophornbeam |
Ostrya virginiana |
male ironwood (Ostrya virginiana) catkins expanding |
| 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 |
| 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) |
| 5472063 |
cherry birch |
Betula lenta |
cherry birch (Betula lenta) seedling |
| 5472560 |
yellow birch |
Betula alleghaniensis |
Betula alleghaniensis (yellow birch) |
| 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 |
| 5472053 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) remnant fruiting structures |
| 5454120 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) male catkins |
| 5444933 |
shingle oak |
Quercus imbricaria |
Shingle Oak, Quercus imbricaria (September 1, 2011) |
| 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 |
| 5461517 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 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) |
| 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 |
| 5454116 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) winter twig - note zig-zag twig and divergent lateral buds (45 degrees) |
| 5454170 |
beaked hazelnut |
Corylus cornuta |
male catkins on beaked hazel (Corylus cornuta) winter twig |
| 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 |
| 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 |
| 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 |
| 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) |
| 5454049 |
northern red oak |
Quercus rubra |
northern red oak winter twig (Quercus rubra) |
| 5454132 |
bur oak |
Quercus macrocarpa |
bur oak (Quercus macrocarpa) |
| 5454050 |
northern red oak |
Quercus rubra |
northern red oak winter twig (Quercus rubra) |
| 5445844 |
American beech |
Fagus grandifolia |
American beech winter twig (Fagus grandifolia) |
| 5445845 |
American beech |
Fagus grandifolia |
American beech (Fagus grandifolia) fruit (a nut) and foliage |
| 5445846 |
American beech |
Fagus grandifolia |
American beech (Fagus grandifolia) |
| 5445511 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) |
| 5444931 |
chinkapin oak |
Quercus muehlenbergii |
chinkuapin oak, Quercus muehlenbergii (note swollen acorn cap scales) |
| 5444932 |
shingle oak |
Quercus imbricaria |
Shingle Oak, Quercus imbricaria |
| 5444940 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch), September 1 (2011) |
| 5444941 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch) |
| 5444943 |
cherry birch |
Betula lenta |
Betula lenta (sweet birch, cherry birch) |
| 5444925 |
yellow birch |
Betula alleghaniensis |
yellow birch (Betula alleghaniensis) |
| 5444930 |
chinkapin oak |
Quercus muehlenbergii |
chinkuapin oak, Quercus muehlenbergii |
| 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) |
| 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) |
| 5443499 |
yellow birch |
Betula alleghaniensis |
yellow birch regeneration (Betula alleghaniensis) on remnant stump |
| 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 |
| 5443503 |
yellow birch |
Betula alleghaniensis |
mature yellow birch (Betula alleghaniensis) on side hill |