Good old Cyperus esculentus.  This sedge produces a crunchy little underground tuber.Those tubers are Chufa Nuts.  (You might know them as Tigernuts,  but I learned about them as Chufa and my brain still thinks of them that way!) You can eat Chufa nuts and you can plant them to get more Chufa. At Tourne-Sol, we … More How To Harvest & Clean Chufa Nuts