Dillenia indica

Native to South and Southeast Asia, this plant is a large tree found in rainforests and along streams and rivers. Its alternate, leathery leaves have toothed margins and many prominent, nearly parallel side veins. Large white flowers open at night and fade by midday. Their numerous stamens surround a star-like arrangement of styles. The round green fruits remain enclosed by thick, fleshy sepals, which form the edible portion and have a sour taste resembling unripe apple. They are used in curries and jams; in Thailand, young fruits are sliced into sweet-and-sour or spicy soups. The reddish-brown bark peels in flakes, and the wood has been used for construction. Photographed in Florida.