Tufted clubrush

Description

Isolepis cernua (basionym Scirpus cernuus) is a species of flowering plant in the sedge family known by the common names low bulrush, slender club-rush, tufted clubrush, and fiberoptic grass. It is widespread, being native to many regions of the world, including parts of Australasia, Eurasia, Africa, and North and South America. Isolepis is a cosmopolitan genus of sedge containing around 70 species. Isolepis is found in cool tropical and temperate climates often in Africa and Australasia. Isolepis was first described by prolific botanist Robert Brown in 1810. In 1870 a botanist Boeckeler disbanded the genus putting most of the names under a different genus, Scirpus. By the early 20th century Isolepis ceased to exist with other botanists following on from Boeckler's work. It was not until the late 20th century that Isolepis was reinstated as a distinct genus due to embryological research.