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Markingnut tree

Semecarpus anacardium

Also called Marking Nut Tree, Phobi Nut Tree, Varnishtree, Oriental Cashew, Bhilawa, Dhobi Nut, Marking Nut

Markingnut tree
Photo: William Roxburgh (1751-1815), Sir Joseph Banks (1743-1820), Public domain

A deciduous tree of India and Myanmar related to the cashew, grown for its edible seed and sweet accessory fruit, but its black nut and resin are seriously irritant and toxic. Handle with care and keep the resin off the skin.

Family
Anacardiaceae (Cashew family)
Grows as
Tree
Light
Full sun, Part shade
Water
Water regularly while young, then tolerates seasonal dry spells once established.
Soil
Well-drained loamy or lateritic soil.
Temperature
20–40 °C; protect below 5 °C
How easy
Moderate
Safety
Toxic: The black drupe and its resin cause severe allergic skin reactions and are toxic if eaten; contact with the resin can blister the skin.
Native range
Indian Subcontinent to Myanmar
Climate
seasonally dry tropical

About

Semecarpus anacardium, commonly known as the marking nut tree, Malacca bean tree, marany nut, oriental cashew, dhobi nut tree and varnish tree, is a native of India, found in the outer Himalayas to the Coromandel Coast. It is closely related to the cashew.

Uses

In medieval times, Semecarpus anacardium was thought to aid in memory retention, for which cause the following dictum became widespread among Jewish scholars: "Repeat [your lessons], and repeat [your lessons], but never stand in need of the marking nut!"

Other Semecarpus plants

Semecarpus

Text excerpted from the Wikipedia article Semecarpus anacardium by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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