1. Tanoak
   Russian-olive
2. Common beech
   Madrone

The common beech is a massive tree that can grow over 100 feet and grows a dense canopy. Its nearly rounded, bright green leaves first appear in May.

1. Field maple
   Sweetgum
2. Buckeye
   Basswood

The leaves of the field maple are olive green but fade during the autumn and have five lobes. It is Britain's only native maple and is used to make syrup.

1. Pitch pine
   Common lime
2. Sassafras
   Balsam fir

The common lime is described as a tall, broad-leaved tree. It can be distinguished by its heart-shaped leaves which contains tufts of hair, which are usually white, along the vein axils.

1. Redwood
   Paper birch
2. Bitternut hickory
   Crack willow

The crack willow shares its physical characteristics with the white willow. It can be differentiated however by its narrow elongated leaves which are shorter than that of the white willow.

1. Catalpa
   Madrone
2. Russian-olive
   Holly

Holly is a popular Christmas decoration. The trees most prominent features are its jagged and prickly emerald leaves and red berries.

1. Tanoak
   Locust
2. Giant sequoia
   Hornbeam

The hornbeam closely resembles the common beech. The leaves of the hornbeam are slightly more elongated than the those of the common beech.

1. Common ash
   Willow
2. Sweetgum
   Buckeye

The common ash is one of the tallest trees in Britain. Its leaves are avocado-colored and come in the form of toothed leaflets.

1. Balsam fir
   Basswood
2. Aspen
   Cottonwood

The Aspen is also known as the Quaking Aspen. This is owed to the rustling sound of its small coppery-brown leaves which are joined to long, flat stalks.

1. Pitch pine
   Rowan
2. Redwood
   Great banyan

Despite its hardiness, the Rowan is described as a graceful tree with a smooth bark. Its leaves are in the form of oval, toothed leaflets.

1. Bitternut hickory
   Sassafras
2. Madrone
   Horse chestnut

Originating in Turkey, the horse chestnut is most popular in gardens and parks and can live up to 300 years. It produces palmated leaves of seven-pointed leaflets.

1. Royal oak
   Common alder
2. Giant sequoia
   Comfort maple

The dark-green round leaves of the alder are one of the only few to remain green throughout autumn.

1. Tanoak
   Silver birch
2. Russian-olive
   Catalpa

The silver birch is native to Britain. It has a white bark and slender trunk that can usually be found near mountains. Its leaves are delicate and large-toothed.

1. Sweetgum
   Buckeye
2. Basswood
   English elm

The English elm was formerly associated with death and melancholy because of how its dead branches fell without warning. This tree has round-tipped leaves which are double-toothed.

1. Locust
   Willow
2. Sweet chestnut
   Redwood

The origin of the sweet chestnut can be traced back to Roman times. Its leaves are long and narrow and comprise saw-like teeth.

1. Cottonwood
   Sycamore
2. Balsam fir
   Paper birch

Sycamore trees are commonly found in gardens and woodlands. Introduced from France, the sycamore grows dark green, toothed leaves which resemble those of the maple.

1. Yew
   Pitch pine
2. Great banyan
   Royal oak

Given its lifespan of 600 years, the yew is a symbol of immortality and is most often seen in churchyards. Its small, needle-shaped leaves grow in rows of two.

1. Madrone
   Sassafras
2. Bitternut hickory
   Sessile oak

This tree was named because of its stalkless acorns. Sessile oaks are usually taller and straighter than the English oak, and its canopy is made of small jagged leaves.

1. Blackthorn
   Tanoak
2. Sweetgum
   Russian-olive

The blackthorn is a deciduous tree of the Rosaceae family that also goes by the name "sloe." Its wrinkled leaves are oval and pointed at the tip.

1. Catalpa
   Paper birch
2. Wild cherry
   Giant sequoia

The wild cherry is native to Britain. Its leaves are oval with pointed tips and can be between 6 cm and 15 cm long. They fade to orange and red during the autumn.

1. Cottonwood
   Balsam fir
2. Buckeye
   Dogwood

Dogwood is most commonly found in southern England. It is a small shrub whose leaves have smooth sides, grows up to 6 cm and are green and oval.

1. Redwood
   Basswood
2. Pitch pine
   Juniper

The juniper is a small, fragrant shrub that can live for just about 200 years. Its needle-shaped leaves are tiny and have sharp points.

1. Great banyan
   Spindle
2. Willow
   Bitternut hickory

The spindle is a round, deciduous tree native to the UK and Europe. It grows waxed, slightly jagged leaves that have sharp teeth along its edges.

1. Whitebeam
   Sassafras
2. Locust
   Sweetgum

The whitebeam is a popular choice for gardens and parks. Its irregularly toothed leaves are shiny on top but have white, felt-like hair in the bottom.

1. Tanoak
   Madrone
2. Giant sequoia
   Crabapple

The crabapple, unlike many other trees, grows singly and not in groups. The tree's leaves are oval with round teeth and have a glossy appearance.

1. Catalpa
   Russian-olive
2. Common box
   Cottonwood

The common box, also known simply as the box or the European box, is an evergreen known for its slow growth. Its leaves are oval and reach up to 25m in length.

1. Paper birch
   Buckeye
2. Black ash
   Royal oak

Animals such as the moose love eating the leaves, while birds go for the seed of the black ash. Its leaves are broad and flat and the leaflets are usually around the same size.

1. Balsam fir
   Redwood
2. Cedar
   Basswood

The cedar is native to Lebanon and is often called majestic because of its size. The green needle-shaped leaves of the cedar grow in clusters.

1. Cypress
   Pitch pine
2. Locust
   Willow

The cypress is believed to have been created during the 19th century by accident. Its small overlapping leaves are soft and scale-like.

1. Common hazel
   Willow
2. Giant sequoia
   Cottonwood

The common hazel reaches a height of up to 40ft and can live for over 70 years. Its leaves are hairy with jagged edges. This tree is believed to have magical powers.

1. Bitternut hickory
   Western hemlock
2. Sassafras
   Sweetgum

The Western hemlock is an evergreen tree that has the honor of being renamed after Queen Victoria's husband. Its small needle-like leaves are soft and grow on forked leaflets.

1. Russian-olive
   Tanoak
2. Pear
   Giant sequoia

The pear is a deciduous tree which reaches up to 20m in height and has a dome-shaped crown. The oval, glossy, pointed leaves grow on long stalks.

1. Catalpa
   Madrone
2. Basswood
   Black pine

The black pine is popularly used as an ornamental piece. The leaves are stiff and needle-shaped and measure between 10 and 15cm.

1. Monkey puzzle
   Cottonwood
2. Redwood
   Buckeye

The monkey puzzle is an evergreen tree which can live up to 1,000 years. Its leaves are spiky and leathery and grow closely along the branches of the tree.

1. Plum
   Locust
2. Paper birch
   Sweetgum

Plums grow as small shrubs or small trees and are said to be a mix between the cherry plum and blackthorn trees. Their leaves are dark green and have serrated edges.

1. Douglas fir
   Willow
2. Pitch pine
   Giant sequoia

The Douglas fir is native to North America. Its small needle-shaped leaves grow around the twig. They are green with white-green undersides.

1. Tanoak
   Norway spruce
2. Balsam fir
   Bitternut hickory

The Norway spruce is popularly used as a Christmas tree. Its square, pointed leaves take the shape of a needle and are sweet-smelling.

1. Sassafras
   Basswood
2. Russian-olive
   Apple

Apple is a widely cultivated deciduous tree, of which there are more than 7,500 variations. It grows dark green leaves which have furry undersides and serrated edges.

1. Catalpa
   Buckeye
2. Cottonwood
   Walnut

The walnut is a broadleaf deciduous tree whose roots have a growth-inhibiting property that prevents other trees from growing next to it. Its leaves are pinnate and form oval leaflets.

1. Madrone
   White poplar
2. Locust
   Redwood

The white poplar has a white, "snow-covered" appearance. The leaves of the white poplar are irregularly toothed. The leaves are green on top but have a white underside.

1. Sweetgum
   Willow
2. Eucalyptus
   Tanoak

Also known as a gum tree, the Eucalyptus is native to Australia. Adult leaves of the Eucalyptus tree are used in the production of Eucalyptus oil. The long and slender drooping leaves are blue-green.