| + | Cyperus (ancient Greek name). Cyperaceae. A large genus of the sedge family, inhabiting both tropical and temperate regions. The species in cult. are all perennials from rootstocks or tubers: Lvs. grass-like: st. simple and mostly naked above: fls. perfect, without perianth, borne in small, compressed spikes, which are variously aggregated in compound umbels, the latter surrounded by foliaceous bracts; styles and stamens 3.— A few are cult. in jardinieres, aquatic gardens and aquaria. Several others are pests in cult. fields. |