Местное название - Beach Spinifex.

Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Genus: Spinifex
Species: S. longifolius
Binomial name: Spinifex longifolius R.Br.©

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Gove Peninsula, Nhulunbuy, NT, Australia. Август.