A genus of usually perennial herbs that have stolons, tubers, or rhizomes. They have erect stems with a leafy base. Flowers are borne in a terminal umbel. The fruits are trigonous nuts. C. papyrus (paper-reed) is a riverside plant growing up to 4 m high whose stems used to be split into thin strips to make papyrus paper. There are about 600 species, found in tropical and warm temperate regions.
Subjects: Plant Sciences and Forestry.