Acer campestre

Acer campestre

Common Maple, Field Maple, Hedge Maple

Alnus firma

Alnus firma

Asian Alder, Firma Alder, Japanese Green Alder

Alnus incana

Alnus incana

European Speckled Alder, Gray Alder, Grey Alder, Hoary Alder, Mountain Alder

Alnus incana

Alnus incana subsp. tenuifolia

ssp. tenuifolia

Mountain Alder, Thinleaf Alder

Alnus rhombifolia

Alnus rhombifolia

Sierra Alder, White Alder

Alnus rubra

Alnus rubra

Red Alder

Betula pendula

Betula pendula b.s.

broken strobiles

European Weeping Birch, European White Birch, Silver Birch, Weeping Silver Birch

Betula pendula

Betula pendula c.s.

clean seed

European Weeping Birch, European White Birch, Silver Birch, Weeping Silver Birch

Betula populifolia

Betula populifolia

Gray Birch

Betula pubescens

Betula pubescens

Downy Birch, White Birch

Platanus occidentalis

Platanus occidentalis broken heads

broken heads

American Plane, American Sycamore

Platanus occidentalis

Platanus occidentalis clean seed

clean seed

American Plane, American Sycamore

Populus canescens

Populus canescens

X

Abele, Grey Poplar, Silver Poplar, Silverleaf Poplar, White Poplar

Robinia pseudoacacia

Robinia pseudoacacia

Black Locust, False Acacia, Yellow Locust