non-native angiosperms

18 shots

African mahogany

Used as a substitute for SA counterpart
Good for musical instruments
4 species
Highly-figured rich wood
Large quantities shipped to US each year
Heartwood pink to dark reddish brown
Traditional African medicines

bigleaf mahogany

Amazon basin
Populations greatly reduced
Hardest neotropical woods
One of VIP on the international market
Now grown invasively in asia

Callery pear

White flowers
All big branches from 1 spot, results in breakage

One of the most planted small trees
Usually no edible fruit on cultivated varieties

Easy to propagate; tolerate heat, dry conditions
Native to China

Chinaberry

Invasive, high quality wood similar to mahogany
Lumber is primary use in native areas

Leaves and fruit poisonous to humans
Birds eat fruit and become drunk or paralyzed
5-grooved seeds used as beads

Chinese elm

Most commonly planted landscape elm today
Name means “small-leaved”
Fast growing, tough urban tree

Many cultivars
Beautiful flaking bark

Chinese tallowtree

Biodiesel
Noxious invader crowding out native species

Cultivated in for seed oil
Waxy coating of the seeds is used for candles and soap
Attractive fall foliage
Introduced in colonial times

cork oak

Source of cork, bark 4-6 in thick
Cork protects tree from fire
Branches quickly resprout

Crape myrtle

One of the most commonly planted urban trees
On one tree may find alternate, opposite, and whorled
Variation in leaf shape from cultivar to cultivar
Bark is smooth and varied in color due to exfoliation of the outer layers

English holly

Used as christmas decoration
Glossy, spiny-edged, evergreen leaves
Bright red berries
Naturalized in parts British Columbia and Washington state 

English oak

Dominant tree of deciduous woods in Britain
Long-Lived
Long-lasting and durable heartwood

Widespreading
One 1500 years old

European beech

Smooth gray bark
Hard woody fruit (nut) covered with bristles
Wood used for a variety of purposes including cloth

Nuts slightly toxic to man, eaten by birds and rodents
pressed to obtain an oil in 19th century england

Eucalyptus

World’s most widely planted trees
Renowned for fast height growth
Over 700 spp most of which are native to australia
Not cold hardy
Oils
Flowers white, yellow, pink or red with conspicuous massed stamens

Lauan

Applies to 100s of species
Endangered bc overlogging
Strong, fine, even
separated by heartwood color
tropical plywood

Mimosa

Legume
Long, silky stamens
Bright, showy red to pink flowers
Naturalized in many areas of E Texas

Soil disease problems- Fusarium

Teak

Wood has essential oil that resists action of water and prevents rust of iron
One of the world’s most valuable trees
In dry areas, not rainforest
Widely cultivated in tropical areas (Phillipines)
One of few tropical trees in plantations long enough to now be harvested
Heartwood termite resistant

weeping willow

Most commonly recognized of the genus
Hybrid of two species (european and chinese)
Flexible, arching branches that often droop to ground level
Requires abundance moisture

white poplar

Planted extensively in the US- very invasive
Leaf margins coarsely toothed and sometimes lobed, shiny green above, silvery white-wooly beneath
White trunk and bark

Wood soft and used to make cellulose and for cheap boxes
Hybridizes readily with common aspen