Rattlebox Senna
<p><b>rattlebox</b>
n : any of various plants of the genus crotalaria having inflated pods within which the seeds rattle; used for pasture and green-manure crops <i>[syn: crotalaria]</i>
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<dd><i>Desert Senna (</i>Senna covesii<i>) is also sometimes called "rattlepod".</i></dd>
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<p><b><i>Crotalaria</i></b> is a genus of herbaceous plants and woody shrubs in the Family Fabaceae (Subfamily Faboideae) commonly known as <b>rattlepods</b>. Some 600 or more species of <i>Crotalaria</i> are described worldwide, mostly from the tropics; at least 500 species are known from Africa. Some species of <i>Crotalaria</i> are grown as ornamentals. The common name rattlepod or <i>rattlebox</i> is derived from the fact that the seeds become loose in the pod as they mature, and rattle when the pod is shaken. The name derives from the Greek , meaning "castanet", and is the same root as the name for the rattlesnakes (<i>Crotalus</i>).</p>