Rattlebox (Noun)

Any of various plants of the genus Crotalaria having inflated pods within which the seeds rattle; used for pasture and green-manure crops.

Nouns denoting plants.

The farmer planted a field of rattlebox to use as a green-manure crop to enrich the soil.
Rattlebox is a common sight in tropical pastures, where it is valued for its ability to fix nitrogen in the soil.
The inflated pods of the rattlebox plant make a distinctive rattling sound when the seeds are mature and dry.
In some parts of the world, rattlebox is used as a cover crop to suppress weeds and improve soil health.
The seeds of the rattlebox plant are an important food source for many birds and small mammals.