Malabar chestnut

Malabar chestnut
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Carolinea macrocarpa
Bombax macrocarpum
Bombax glabrum
Pachira macrocarpa

Pachira aquatica is a tropical wetland tree native to Central and South America where it grows in swamps. It is known by the common names Malabar chestnut, Guiana chestnut, provision tree, saba nut, and is commercially sold under the name money tree.

Pachira aquatica can grow up to 18 meters in height in the wild. It has shiny green palmate leaves with lanceolate leaflets and smooth green bark. Its showy flowers have long, narrow petals that open like a banana peel to reveal hairlike yellowish orange stamens. The tree is cultivated for its edible nuts which grow in a very large, woody pod. The nuts are light brown, striped with white. They are said to taste like peanuts, and can be eaten raw or cooked or ground into a flour to make bread. The leaves and flowers are also edible.

The tree grows well as a tropical ornamental in moist, frost-free areas, and can be started from seed or cutting. It is a durable plant and will adapt very well to different conditions. The pachira needs plenty of sunlight though it is important to avoid direct sunlight during the summer months as the leaves may get sunburnt.

In East Asia, Pachira aquatica (Chinese: 馬拉巴栗; pinyin: Mǎlābā lì; literally “Malabar chestnut”) is often referred to as the “money tree” (發財樹 fācái shù). The tree had long been popular as an ornamental in Japan. In 1986, a Taiwanese truck driver first cultivated five small trees in a single flowerpot with their trunks braided. The popularity of these ornamentals took off in Japan and later much of the rest of East Asia. They are symbolically associated with good financial fortune and are typically seen in businesses, sometimes with red ribbons or other auspicious ornamentation attached. The trees play an important role in Taiwan’s agricultural export economy with exports of NT$250 million (US$7 million) in 2005. [1]

The genus name is derived from a language spoken in Guyana.[2] The species name is Latin for “aquatic”.