Lasiacis ligulata is a species of grass found in the Caribbean and Tropical South America.

Lasiacis ligulata was described by Albert Spear Hitchcock and Mary Agnes Chase in 1917.

The type specimen was collected in Trinidad, between bushes by a stream.

[2][3] Lasiacis ligulata is a perennial, tuft-forming plant with rambling or climbing, woody culms that grow 1–5 m long and 6–13 mm thick.

[1] The species is found from the Caribbean to northern and western South America, including Brazil.