Canna glauca is a species of flowering plant in the family Cannaceae, native to South America. It is a herbaceous perennial plant that grows up to 2.5 meters tall. The leaves are large, up to 60 cm long and 30 cm broad, and are glaucous green in color. The flowers are yellow, with three petals and three sepals, and are produced in large racemes up to 50 cm long.