Rafflesia flower (Rafflesia keithii) on the forest floor. It is one of the largest flowers known, and can reach a width of a metre. It is a parasitic plant, spending most of its life as a tiny thread within its host, a type of vine. When mature, the flower erupts from the host, although it only flowers for a few days. During flowering it smells of rotting flesh to attract pollinating insects. Photographed in Sabah, Malaysia.