Clicking on particular species will lead you to more information or photographs:
A camera indicates there are pictures. 
A speaker indicates there is a sound file demonstrating pronunciation
of the botanical name. 
A plus sign after a Latin name indicates that the species is further divided into varieties or subspecies. 
Your search found 17 taxa.
)
Common Name:
Green Alder, Mountain Alder
SYNONYMOUS WITH
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Alnus viridis var. crispa
INCLUDED WITHIN
Manual of the Southeastern Flora (Small, 1933)
Alnus alnobetula
Male catkin buds sessile, not pendent, per Woody Plants of the Southeastern US: A Winter Guide.
)
Common Name:
Tag Alder, Hazel Alder, Smooth Alder
Male catkins longer than female catkins, pendent, each one stalked, per Woody Plants of the Blue Ridge.
Common Name:
Speckled Alder
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Alnus rugosa
)
Common Name:
Black Alder, European Alder
SYNONYMOUS WITH
Alnus alnus
Male catkins appear in fall; female appear in spring before leaves emerge, per Invasive Plants, Guide to Identification, Impacts and Control.
)
Common Name:
Beaked Hazelnut
Male catkins sessile and dangling, on 1-year-old lateral twigs, per Forest Plants of the Southeast and Their Wildlife Uses.
)
Common Name:
American Hazelnut, American Filbert
Catkin buds distinctly stalked, per Woody Plants of the Blue Ridge.
)
Common Name:
Yellow Birch
Pistillate flowers in erect catkins about 3/4" long, per Native Trees of the Southeast, An Identification Guide.
)
Common Name:
Sweet Birch, Cherry Birch, Black Birch, "Mahogany"
Flowers tiny, staminate in drooping catkins near tip of twigs, per Native Trees of the Southeast, An Identification Guide.
Common Name:
Mountain Paper Birch
Common Name:
Canoe Birch, Paper Birch
Common Name:
Gray Birch, White Birch
)
Common Name:
River Birch, Red Birch
Staminate catkins elongate and drooping, pistillate cylindrical and upright, per Native Trees of the Southeast, An Identification Guide.
Common Name:
American Hop-hornbeam, Ironwood, Eastern Hop-hornbeam
)
Common Name:
Musclewood, American Hornbeam, Blue-beech, Ironwood
Male flowers in dense drooping cylindrical catkins 3-4cm long, per Trees of the Southeastern United States.
Your search found 17 taxa. You are on page PAGE 1 out of 1 pages.