Sir W. Jones and Mr. Wilford inform us, that Cusa grass is of the genus named Poa by Linnaeus: that the brahmins say this grass derived its sanctity and appellation from Cush, the progenitor of a great Indian family; and some say it grew round the body of Cush himself, or of his son Cusicha, when performing his Tapasya, or act of austere devotion.