Loganiaceae · Strychnos

Kuchala / Poison Nut Tree

Strychnos nux-vomica

Also known as Quaker Button, Nux-Vomica Tree, Snakewood Tree, Strychnine Tree

TreeMedicinal
Habit
Tree
Found in India
Tamil Nadu, Kerala, Andhra Pradesh & more
Flowering
March-December

Plant Details

Scientific name
Strychnos nux-vomica
Genus
Strychnos
Habit
Tree
Habitat
Moist and dry deciduous forests, also in the plains
Habitat type
Forest
Distribution
India, Sri Lanka, Indo-China, Malesia, Myanmar, Siam
Found in India
Tamil Nadu, Kerala, Andhra Pradesh, Maharashtra, Gujarat, Karnataka
Flowering & fruiting
March-December
Conservation status
Not Evaluated (NE)

Local Names

Hindi
जहर Jahar, कजरा Kajara, कुचला Kuchala
Bengali
কুচিলা Kuchila
Tamil
அக்கு Akku, எட்டி மரம் Etti-Maram, காகோடி Kakodi, Yetti
Telugu
ముష్టిగంగ Mooshtiganga, ముష్టి Mushti, ముషిడి Musidi, ముషిడి
Kannada
ಹೆಮ್ಮುಷ್ಟಿ Hemmushti, ಇಟ್ಟಿ Itti, ಕಾಡಿಟ್ಟಿ Kaaditti, ಕಾಸರಕ
Malayalam
കാഞ്ഞിരം Kaanjiram, കാഞ്ഞിരം, കാരസ്കരം
Marathi
काजरा Kajara, कुचला Kuchala, काजरा

Kuchala in India

This tree, known as जहर Jahar (Hindi), அக்கு Akku (Tamil), ముష్టిగంగ Mooshtiganga (Telugu), ಹೆಮ್ಮುಷ್ಟಿ Hemmushti (Kannada), കാഞ്ഞിരം Kaanjiram (Malayalam), काजरा Kajara (Marathi), is best known for its highly toxic seeds. Strychnos nux-vomica is found across Tamil Nadu, Kerala, Andhra Pradesh, Maharashtra, Gujarat, Karnataka, typically in deciduous forest.

Uses

Its seeds contain strychnine and related alkaloids and have a documented history of use in traditional preparations under highly controlled, expert conditions — but the raw seed is dangerously toxic, and this is not a plant to self-treat with or forage; any traditional use requires trained expert processing.

How to Identify Kuchala

A tree with glossy, broad, strongly veined opposite leaves. Small greenish-white flowers cluster at the branch tips, followed by round, hard-shelled orange fruit resembling a small orange, containing several flat, disc-shaped, hairy seeds — the toxic part of the plant.

Frequently Asked Questions

What is Poison nut Tree called in different Indian languages?
जहर Jahar (Hindi); அக்கு Akku (Tamil); ముష్టిగంగ Mooshtiganga (Telugu); ಹೆಮ್ಮುಷ್ಟಿ Hemmushti (Kannada); കാഞ്ഞിരം Kaanjiram (Malayalam); काजरा Kajara (Marathi); কুচিলা Kuchila (Bengali).
Are nux vomica seeds dangerous?
Yes — the seeds contain strychnine and related alkaloids and are highly toxic if ingested raw or unprocessed; this plant should never be self-administered or foraged.
Is the fruit edible?
No — while the fruit resembles a small orange, both the fruit pulp and especially the seeds are unsafe to eat and should not be consumed.
Illustration representing the Loganiaceae family
Botanical family

Loganiaceae

Logania Family

Kuchala belongs to the Loganiaceae family.

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Sources: GBIF — Strychnos nux-vomica (India distribution & vernacular names) (CC BY 4.0) · Wikipedia — Strychnos nux-vomica (background/comprehension only) (CC BY-SA 4.0)