Tripsacum dactyloides (Eastern Gamagrass)
Botanical name: Tripsacum dactyloides
Common names: Eastern Gamagrass, Fakahatchee Grass
Family: Poaceae
Origin: Florida
USDA Plant Hardiness Zone Map
Recommended Uses: Hedge, individual large grass clump, background screen for a flower garden. Tripsacum dactyloides can survive droughts and floods for a long time because of its rigid and thick rhizomatous roots which firmly holding the plant upright.
Link to this plant:
https://toptropicals.com/catalog/uid/tripsacum_dactyloides.htm