silk tree

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A small ornamental tree (Albizia julibrissin) in the pea family, native to Asia and naturalized in the southeast United States, having pinnately compound leaves and pinkish flowers with long silky stamens.

from The Century Dictionary.

• noun An ornamental deciduous tree, Albizzia (Acacia) Julibrissin, a native of Abyssinia and eastern and central Asia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun attractive domed or flat-topped Asiatic tree having bipinnate leaves and flowers with long silky stamens