Rhynchospora sect. Echinoschoenus Rhynchospora sect. Echinoschoenus in B. & H., Gen. Pl. 3: 1060. 1883≡Echinoschoenus NEES & MEY. ex NEES in Linnaea 9: 297. 1835≡(Polycephalae) in Urban, Symb. Ant. 2: 104. 1900≡Polycephalae in Kew Bull. 8: 118. 1908