Convention on Biological Diversity
This tall, robust, leafless aquatic plant can grow 4 to 5 m (13 to 16 ft) high. It forms a grass-like clump of triangular green stems that rise up from thick, woody rhizomes. Each stem is topped by a dense cluster of thin, bright green, thread-like stems around 10 to 30 cm (4 to 10 in) in length, resembling a feather duster when the plant is young. Greenishbrown flower clusters eventually appear at the ends of the rays, giving way to brown, nut-like fruits.
Papyrus ranges from subtropical to tropical desert to wet forests, tolerating annual temperatures of 20 °C (68 °F) to 30 °C (86 °F) and a pH of 6.0 to 8.5. Papyrus flowers in late summer, and prefers full sun to partly shady conditions. Like most tropical plants, it is sensitive to frost.