Water caltrop | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-10

This is an audio version of the Wikipedia Article:
Water caltrop


00:00:45 1 Etymology
00:01:43 2 Biology
00:03:07 3 Fossil record
00:03:41 4 History
00:07:11 5 Role in fasciolopsiasis transmission
00:07:58 6 Chemistry



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SUMMARY
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The water caltrop is any of three extant species of the genus Trapa: Trapa natans, Trapa bicornis and the endangered Trapa rossica. It is also known as  buffalo nut, bat nut, devil pod, ling nut, lin kok, ling kio nut, mustache nut or singhada.
The species are floating annual aquatic plants, growing in slow-moving water up to 5 m deep, native to warm temperate parts of Eurasia and Africa. They bear ornately shaped fruits, which in the case of T. bicornis resemble the head of a bull or the silhouette of a flying bat. Each fruit contains a single very large, starchy seed. T. natans and T. bicornis have been cultivated in China and the Indian subcontinent for the edible seeds for at least 3,000 years.