| 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 |
| 5474117 |
bog birch |
Betula pumila |
Betula pumila (bog birch) |
| 5474140 |
bog birch |
Betula pumila |
Betula pumila (bog birch) |
| 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) |
| 5472358 |
bog birch |
Betula pumila |
Betula pumila (bog birch) female catkin |
| 5472348 |
bog birch |
Betula pumila |
Betula pumila (bog birch) male catkin |
| 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 |
| 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) |
| 5472119 |
hophornbeam |
Ostrya virginiana |
ironwood (Ostrya virginiana) mature bark |
| 5472104 |
hophornbeam |
Ostrya virginiana |
male ironwood (Ostrya virginiana) catkins expanding |
| 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) |
| 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 |
| 5459331 |
beaked hazelnut |
Corylus cornuta |
beaked hazel winter buds (Corylus cornuta) |
| 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 |
| 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 |
| 5445511 |
beaked hazelnut |
Corylus cornuta |
beaked hazel (Corylus cornuta) |
| 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) |
| 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) |