Cyperus

Cyperus is a genus of plants belonging to the family Cyperaceae, commonly known as sedges. This family is one of the largest flowering plant families, with approximately 5,000 species distributed across all continents except Antarctica. The genus Cyperus itself contains nearly 650 species and is primarily found in warm temperate or tropical regions.12

Members of the Cyperus genus have scales on their spikelets that are arranged in two rows, with all flowers being perfect and spikelets appearing alike. While few sedges are cultivated as crops, some species like the Chinese water chestnut (Eleocharis dulcis) and yellow nut sedge (Cyperus esculentus) are edible. Historically, Cyperus papyrus was used in ancient Egypt to make paper and boats. Many Cyperus species are also important ecologically, often dominating wetland habitats and serving as food and cover for wildlife. However, some species, such as purple nut sedge (Cyperus rotundus), are considered significant agricultural weeds.13