The flowers of Gunnera perpensa grow in an erect or curved spike from 20 cm to 90 cm tall. The male flowers are at the tip of the spike, the female ones below them. The spike may be above or shorter than the leaves. G. perpensa flowers in spring and summer.
The tiny, pinkish to red-brown flowers are fleshy. Some Gunnera species don’t have sepals, some are without petals. The one or more stamens in Gunnera flowers have anthers sometimes longer than the filaments. The inferior ovary has one locule (Leistner, (Ed.), 2000; Pooley, 1998; Moriarty, 1997; Van Wyk and Malan, 1997; iNaturalist).