Scirpus L. subg. Schoenoplectus (Reichenb.) Ohwi sect. Actinoscirpus Ohwi, Mem. Coll. Sci., Kyoto Imp. Univ., ser. B,18,1(1): 98. 1943; Hymenochaeta P. Beauv. ex Lestib., Essai sur la Famille des Cypéracées, p. 43. 1819; sensu Nees in Arn., Edinb. New Philos. J. 17(34): 264. 1834, (sub "Hymenochaete"), nom. rejic., non Hymenochaete Léveillé nom. cons. (Fungi).

Perennials to c. 2 m. Leaves basal, blades long. Inflorescence terminal anthelodium; lowest 3 bracts foliose; spikes numerous, glumes spirally arranged. Flowers bisexual, perianth bristles 5, stamens 3, stigmas 3. Nut trigonous. A monotypic genus, related to Scirpus s. str. (S. sylvaticus L.); also resembling Schoenoplectus (sect. Schoenoplectus), but separated by presence of long leaf blades; perianth bristles present.

Lower Taxon

• Actinoscirpus grossus (L. fil.) Goetghebeur & D.A.Simpson