goose grass (Noun) — Annual having the stem beset with curved prickles; North America and Europe and Asia.
goose grass (Noun) — Low-growing perennial having leaves silvery beneath; northern United States; Europe; Asia.
goose grass (Noun) — Annual weedy grass used for hay.
goose grass (Noun) — Coarse annual grass having fingerlike spikes of flowers; native to Old World tropics; a naturalized weed elsewhere.