Alnus glutinosa

Alnus glutinosa

European Alder

Alnus incana

Alnus incana subsp. tenuifolia

ssp. tenuifolia

Mountain Alder, Thinleaf Alder

Alnus japonica

Alnus japonica

Japanese Alder

Alnus rubra

Alnus rubra

Red Alder

Populus deltoides

Populus deltoides

Cottonwood, Eastern Cottonwood

Populus grandidentata

Populus grandidentata

Bigtooth Aspen

Populus tremula

Populus tremula

European Aspen

Populus tremuloides

Populus tremuloides

Quaking Aspen

Populus trichocarpa

Populus trichocarpa

Black Cottonwood , California Poplar, Western Balsam Poplar

Populus canescens

Populus canescens

X

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

Tilia americana

Tilia americana

American Basswood, American linden, Basswood