Urticales

There are about 1,000 species of trees and shrubs in this family. They are found in  tropical and subtropical regions and contain a milky latex. The plants in this family have alternate leaves and small, petalless male or female flowers. Many of the plants in this family have fruit that is edible. Species include the fig, mulberry, banyan, Indian rubber tree and breadfruit plants.

There are 300 species of of trees, shrubs, and woody vines in this family. Male and female flowers are on separate plants. Species inthis family include the trumpet tree, which is native to Mexico and Central and South America. It was introduced to Hawaii in the 1920s.

There are around 110 species or trees, shrubs, climbing vines and herbs in this family. They are found in the Northern Hemisphere. Plants include hemp and Japanese hop.

There are 140 species in this family. Leaves alternate and usually have toothed edges. Male and female flowers are can be together or apart on the same plant. The fruit is a samara, a one seeded winged fruit. Plants in this family include the American elm, the English elm, the Chinese elm, the Siberian elm, zelkova trees and bushes, and hackberry trees.

There are between 800 and 1,000 species in this family. Most of the plants in this family are herbs, although there are some shrubs, small trees and vines Most grow in temperate regions. Many of these plants have  stinging hairs on their stems and leaves. Plants include stinging nettle, Australian nettle tree, baby tears, and the trumpet tree.

This family has one species of small tree, Barbeya oleoides, in this family. It is found in northeastern Africa.