Cyperus bulbosus ?

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Cyperus bulbosus is a species of sedge found across Africa, India, and Australia. In the latter it is commonly called (Australian) Bush Onion or “wild onion“, but is not related to the onion or other alliaceae. It is a component of Australian bushfood but is considered an agricultural weed in other areas.

C. bulbosus is perennial and rhizomatous, with fine grassy foliage and triangular culms characteristic of the family.[1] The inflorescence is rarely branched and consists of a cluster of spikes of reddish brown bracts, eventually producing small three-sided seeds.[1]
The small tubers which form on short stolons are a traditional bush tucker food for Australian Aborigines. They are dug up on creek banks when the grass of the onion has dried out. The husk can also be eaten. They are eaten raw or cooked in the hot earth by the fire. 
(From Wikipedia 0n 4.5.13)
 
Cyperus bulbosus ????????????
plz validate me