Tall albizia


Tall albizia, or white siris, is native to Asia, from India to northern Australia. It was introduced to Puerto Rico in 1924 and was planted along roads and in farms, from where it has aggresively invaded disturbed or abandoned fields. In its natural distribution it reaches a height of 120 feet, with a trunk 3 feet in diameter. The bark is whitish with a greenish cast, contrasting sharply with the foliage. The leaves are up to 2.5 feet long and twice compound. Flowers are slightly under an inch in diameter and are grouped in terminal inflorescences. Fruits are slender flat pods, up to 7 inches long. It flowers mainly from July to October and the pods open from January to July. The generic name honors the 18th century Florentine nobleman Filippo del Albizzi. The species name means tall, in reference to the size of the mature tree.

The photographed tree is one of several individuals growing northeast of the Business Administration Building. There are other trees behind the printing shop, northeast of the new athletic field, behind the Biology Building and at the Research and Development Center. All these trees were surely propagated by the wind.

Albizia procera (Fabaceae)