The enormous paddle-shaped leaves are borne on long
petioles, in a distinctive
fan shape aligned in a single plane (
distichous). The foliar fan consists of 30 to 45 leaves for mature specimens, each as much as 36 feet (11 metres) in length. As the plant grows older, it progressively loses the lowest or oldest leaves and reveals a sturdy grey trunk. Of the four forms, varieties or subspecies, the largest is the "Bemavo", from the hills of eastern Madagascar, which can be 100 feet (30 metres) in height with a trunk 2 feet (60 cm) thick. The large white flowers are structurally similar to those of its relatives, the bird-of-paradise flowers
Strelitzia reginae and
Strelitzia nicolai, but are generally considered less attractive, with a green
bract. These flowers, upon being pollinated, produce brilliant blue seeds. The chromosome number is 2n = 22. ==Range and habitat==