nut sedge

English Thesaurus

1. a widely distributed perennial sedge having small edible nutlike tubers (noun.plant)

hypernym	:	sedge,
definition	:	grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers (noun.plant)

member meronym	:	cyperus, genus cyperus,
definition	:	type genus of Cyperaceae; grasslike rhizomatous herbs; cosmopolitan except very cold regions (noun.plant)