Paspalum is a genus of plants in the grass family. The group is widespread across much of Asia, Africa, Australia, and the Americas Commonly known as paspalum, bahiagrasses, crowngrasses or dallis grasses, many of the species are tall perennial New World grasses. They are warm-season C4 grasses and are most diverse in subtropical and tropical regions. The ergot Claviceps paspali is a sac fungus that grows on Paspalum, producing ergot alkaloids and the tremorgen paspalitrem; it causes "paspalum staggers" poisoning in cattle. Tussock paspalum (P. quadrifarium) is considered a weed in Australia.