The popular houseplant known as a money tree is likely a case of mistaken identity.
In short: The braided money tree sitting in your living room is probably not the tropical wetland species you think it is. While marketed as Pachira aquatica, most commercial specimens are actually a related species called Pachira glabra. This confusion stems from a long-standing misidentification that originated in Taiwan's export industry.
Pachira aquatica is a tropical wetland tree native to Central and South America, where it naturally thrives in swampy environments. In its wild state, it can reach heights of 23 meters and produces large, showy flowers with long, narrow petals that open like a banana peel. These blossoms, which emit a fragrance reminiscent of lilacs, are believed to be pollinated by bats. The tree also produces woody, egg-shaped capsules containing edible nuts that are sometimes compared to European chestnuts in flavor.
The common moniker 'money tree' is tied to a legend of a poor man who prayed for wealth, discovered the plant, and found prosperity by selling its seeds. However, the commercial success of the plant as an ornamental houseplant is largely a product of Taiwanese cultivation. In Taiwan, the species was long misidentified as P. aquatica. Researchers later clarified that the plants grown there are actually P. glabra, distinguished by their smooth chestnuts rather than the reddish-brown, hairy fruits of the true P. aquatica.
Despite its popularity as a houseplant, the safety of consuming the nuts remains a subject of debate. The nuts contain cyclopropenoid fatty acids (CPFAs), which some reviews suggest are carcinogenic and potentially dangerous to human health. In one study involving six rats, five died after consuming the nuts, while the survivor exhibited significant organ damage. While humans have historically consumed the nuts raw or roasted, and even used them in hot drinks, scientific research regarding their specific health impacts on humans is currently lacking.
For those keeping these plants at home, they are remarkably durable and adapt well to various indoor conditions. They thrive in bright, indirect light and can even be grown in hydroponic systems. While they may shed leaves during shorter autumn days, they typically recover in the spring. Ideally kept at around 20 degrees Celsius, they can withstand temperatures as low as 5 degrees Celsius, though they are best protected from frost.
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Sources
- Summary by Intellect · source: Pachira aquatica
- Also: provision tree (Pachira aquatica)
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