Chrysopogon aciculatus (syn. Andropogon aciculatus) is a species of grass native to the tropics of Asia, Polynesia, and Australia at low elevations. Common names include amorseco (Spanish, "dry love") (not to be confused with the amor seco tree, Alchornea glandulosa), lesser spear grass, Mackie's pest, pilipiliula, and grama-amorosa (Brazilian Portuguese). The grass is widely considered an invasive species, but some cultures use it for medicinal purposes.