Betula nigra

Betula nigra Southern

Southern

River Birch, Water Birch

Betula occidentalis

Betula occidentalis

Red Birch, Water Birch, Western Red Birch

Betula papyrifera

Betula papyrifera broken strobiles

broken strobiles

Canoe Birch, Paper Birch, White Birch

Betula papyrifera

Betula papyrifera clean seed

clean seed

Canoe Birch, Paper Birch, White Birch

Betula pendula

Betula pendula Prostrate

'Prostrate'

Prostrate European White Birch

Betula platyphylla

Betula platyphylla Kamchatka

Kamchatka

Kamchatka Asian White Birch

Betula platyphylla

Betula platyphylla Szechwanica

var. Szechwanica

Szechwan Asian White Birch

Betula populifolia

Betula populifolia

Gray Birch

Betula populifolia

Betula populifolia 'Whitespire'

'Whitespire' clean seed

White Spire Birch

Betula populifolia

Betula populifolia 'Whitespire' broken strobiles

'Whitespire' broken strobiles

White Spire Birch

Betula pubescens

Betula pubescens

Downy Birch, White Birch

Betula schmidtii

Betula schmidtii

Schmidt Birch

Betula tianschanica

Betula tianschanica

Tian-shan Birch, Tianan Birch

Betula utilis

Betula utilis

Himalayan Birch

Betula utilis

Betula utilis var. jacquemontii

var. jacquemontii

Whitebarked Himalayan Birch

Liquidambar formosana

Liquidambar formosana

Chinese Sweet Gum, Formosan Gum, Formosan Sweetgum

Populus balsamifera

Populus balsamifera

Balsam Poplar

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, Trembling Aspen

Populus trichocarpa

Populus trichocarpa

Black Cottonwood , California Poplar, Western Balsam Poplar

Ulmus minor

Ulmus minor

Field Elm