Formosan koa

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Acacia confusa

Family: Fabaceae Genus: Acacia Species: confusa

Synonyms: Acacia confusa var. inamuroi, Racosperma confusum

Formosan koa
Formosan koa

Western Herbalism Properties

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Traditional Uses

In Taiwan, Acacia confusa is used in traditional Chinese-influenced folk medicine and is still sold in herbal shops; the root is employed for detoxification and for treating inflammation of the larynx and windpipe and liver disorders (Wikipedia; Taiwanese herbal sources). Separately, indigenous peoples of Taiwan have traditionally used the alkaloid-rich root and stem bark as an entheogen in ritual contexts (a recreational/ceremonial use rather than a documented therapeutic indication). The bark is very rich in tannins.

Botanical Description

Acacia confusa, the Formosan koa or Formosa acacia, is an evergreen tree of the legume family (Fabaceae) native to Taiwan and the Philippines and widely planted elsewhere in the tropics. It grows up to about 15 metres tall with a dense, spreading crown and dark, rough bark. As in most Australian-affinity acacias the true compound leaves are replaced in mature plants by flattened, leaf-like phyllodes, which here are narrow, slightly curved (falcate) and leathery. Bright golden-yellow flowers are crowded into small, fluffy, globular heads that appear abundantly and are followed by flat, narrow, oblong pods containing several seeds. The wood and bark are notably rich in tannins (the bark containing roughly 23 to 35 percent), and it is valued for timber, soil stabilisation and reforestation. It tolerates poor soils and is fast-growing, sometimes becoming naturalised outside its native range.

Native Region: Borneo, Malaya, Philippines, Sumatera, Taiwan

This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.

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