is a specific kind of: liliopsid genus, monocot genus.

has as a member: drop-seed, dropseed | blackseed, carpet grass, smut grass, Sporobolus poiretii | rush-grass, rush grass.

is a member of: family Graminaceae, family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family, Poaceae.