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Albizia
Albizia julibrissin4.jpg
Persian silk tree (Albizia julibrissin),
foliage and blossoms
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Albizia
Durazz. 1772
Diversity
About 150 species
Synonyms
  • Albizzia Benth.
  • Arthrosamanea Britton & Rose ex Britton & Killip
  • Besenna A. Rich.
  • Parasamanea Kosterm.
  • Parenterolobium Kosterm.
  • Pseudalbizzia Britton & Rose
  • Sassa Bruce ex J. F. Gmel.
  • Serialbizzia Kosterm.
Doon Siris (Albizia procera) pod at Jayanti, Duars, West Bengal W Picture 215
Albizia procera fruits

Albizia is a group of over 160 types of trees and shrubs. They grow mostly in warm, tropical and subtropical parts of the world. These plants are part of the pea family, Fabaceae. You can find them all over the world in warm areas, especially in Asia, Africa, and Australia.

People often call them silk plants, silk trees, or sirises. The name Albizia comes from an Italian nobleman, Filippo degli Albizzi. He brought the Albizia julibrissin to Europe in the mid-1700s. Sometimes, people mistakenly call them "mimosa," but that name belongs to a different group of plants.

What Do Albizia Plants Look Like?

Most Albizia plants are small trees or shrubs. They usually do not live for a very long time. However, there is a huge Albizia saman tree in Venezuela called the Samán del Guère. It is hundreds of years old!

Leaves and Flowers

Albizia leaves are special. They are made up of many smaller leaflets, like a feather. This is called "pinnately compound" or "bipinnately compound."

The flowers are small and grow in bunches. The most noticeable part of the flower is its many long, colorful stamens. These stamens are much longer than the petals. They often look like fluffy pom-poms. For example, the Persian silk tree has beautiful pink stamens.

Albizia flowers have more than 10 stamens. This helps tell them apart from Mimosa flowers. Also, Albizia stamens are joined at their bases. This is different from another related group of plants called Acacia.

How Are Albizia Plants Used?

Albizia plants are very useful. They provide food for animals, especially forage (plants eaten by grazing animals). Their wood is also used as timber. Some species are even used in traditional medicine.

Many Albizia trees are grown just for their beauty. Their pretty, fluffy flowers make them popular ornamental plants in gardens. The Albizia julibrissin is a great example of this.

Food for Caterpillars

Some Albizia species are also food for the larvae (young forms) of certain moths. These include moths like E. damor and E. malabaricus.

Albizia as an Invasive Plant

Some Albizia species can become invasive. This means they grow very fast and spread easily in new places. When they spread too much, they can harm the local environment.

For example, the Molucca albizia (Falcataria moluccana) is a problem in Hawaii and other Pacific Islands. It grows quickly in wet areas. This tree also tends to drop large branches. These falling branches can damage power lines, houses, and other buildings.

See also

Kids robot.svg In Spanish: Albizia para niños

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