Legundi (Vitex trifolia)

The fruit is said to be nervine, cephalic, and emmenagogue. It is prescribed in the form of powder, an electuary, and a decoction. A decoction of the dried fruits is given in the treatment of common cold, headache, watery eyes and mastitis.
The fruit contains an acid alkaloid, and colouring matter.

The inner bark is chewed and swallowed as a remedy for dysentery.

Agroforestry Uses:
The plant is often used as a hedge, especially in Asia, although it may trigger various allergic reactions (sneezing, respiratory problems, dizziness, headache, nausea) to people trimming or pruning such hedges.
The plant has been used to control erosion on sand dunes, which it does well within its native range. However, its ability to escape from cultivation, plus its negative effect upon some wildlife, makes it unsuitable for this purpose in other areas.
The plant makes an excellent ground cover.
Other Uses
The leaves contain 0.11 - 0.28% of an essential oil and a resin. The chief constituents of the oil are l-d pinene and camphene, which between them constitute 55% of the oil, there is also 10% terpinyl acetate and 20% of a diterpene alcohol.

The flowers and seeds of the plant are used in the making of leis.

The leaves are burned as an insect/mosquito repellent.
Oils from the leaves show considerable mosquito repellent activity. The active principle has been identified as rotundinal, a cycloterpene aldehyde. The plant shows considerable potential as a botanical pesticide that may be applied both indoors and outdoors.

The wood is used in light construction and for tools and axe handles.
The wood is used for fuel.

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