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Crotalaria spectabilis

Showy rattlepod

Native

Commonly known as Greater Rattlepod, Cats Bell, Rattlebox, Rattleweed, Yellow Crotalaria, Ghunghunya.

A shrub or undershrub with mostly smooth branches and showy yellow, pea-like flowers, followed by pods that rattle when shaken, hence the name. It's a plant with a genuinely two-sided reputation: useful farm helper in some contexts, declared noxious weed in others.

The plant

Habit Herb

Origin Native

Flowering Winter

Edible Yes, To be verified

Growing it

Sun Full sun

Soil Almost any

Started from Seed

Life it supports

No specific wildlife-relationship data recorded for this species.

How to grow it

Sow seed directly where it's to grow.
Pre-soaking the seed for 12 hours in warm water can help reduce germination time.

The story

No cultural-significance data recorded for this species.

What it is used for

Flowers are cooked and eaten as a vegetable, or pickled after boiling.
Traditionally used to treat scabies and impetigo.
On the farming side, it's grown as a green manure and soil stabiliser: its fresh foliage runs 0.5-1% nitrogen, improving fertility and soil structure when worked in.
It also contains a compound (monocrotaline) toxic to root-knot nematodes, making it useful for nematode control, though the same compound is toxic if ingested, so it's not something to eat casually despite the vegetable use above.

These uses are documented for information only and are not medical advice. Always verify the species and the plant part before use.

Where it is found

Native to Pakistan, India, Nepal, Bangladesh, Myanmar, Thailand, and Malaysia, naturalised throughout the tropics; found in montane grasslands, along trails, and as a cultivated-field weed.

Sources

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