This is an Orange River Lily, Crinum bulbispermum. It belongs to the genus of Amyrillidaceae. Colours range from white to whitish-pink. The leaves are very long and strap-shaped. the flowers appear from September to November and are borne at the end of a long stalk in umbels. Pollinators not known, but propably moths. The capsule is very large and bears egglets that root spntaneously when falling to the ground, where a cotyledon appears shortly thereafter, which is feed by the egglet, until the roots ae sufficiently developed. The flowers could be used for commercial purposes, because they are showy. The drawback is, that a butterfly uses the plant as host for its eggs, which develop inside the bulb into caterpillars and turn the plants into a pulpy mess in a very short time. Luckily, the plant recovers later in summer, but new flowers will only appear the following spring.