Tripsacum floridanum is a species of grass in the family Poaceae known by the common name Florida gamagrass.

[2][3][4] This grass grows from a short, thick rhizome and produces stems up to a meter tall.

[5] Though uncommon in general, the grass is "moderately common in Everglades National Park.

[4] Genus Tripsacum is related to maize (Zea mays).

[6] Species of Tripsacum, especially T. floridanum, have been crossed with maize to produce a corn that is resistant to Helminthosporium turcicum, the fungus that causes northern leaf blight in the crop.