| Noun | 1. | genus Erianthus - genus of reedlike grasses having spikes crowded in a panicle covered with long silky hairs liliopsid genus, monocot genus - genus of flowering plants having a single cotyledon (embryonic leaf) in the seed family Graminaceae, family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family, Poaceae - the grasses: chiefly herbaceous but some woody plants including cereals; bamboo; reeds; sugar cane plume grass - a reedlike grass of the genus Erianthus having large plumes Erianthus ravennae, Ravenna grass, wool grass - grass often cultivated for its long white-ribbed leaves and large plumes resembling those of pampas grass |