bur reed

English Thesaurus

1. marsh plant having elongated linear leaves and round prickly fruit (noun.plant)

hypernym	:	herb, herbaceous plant,
definition	:	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests (noun.plant)

member meronym	:	genus sparganium, sparganium,
definition	:	type and sole genus of Sparganiaceae; marsh or aquatic herbs of temperate regions (noun.plant)