筛草组 shai cao zu

Rhizome long creeping, indurate. Plants monoecious or dioecious. Involucral bracts glumelike or narrowly leaflike, sometimes surpassing inflorescence. Inflorescence oblong-ovate; spikes numerous, male or female, rarely androgynous, ovate. Female glumes larger, ferruginous. Utricles lanceolate-ovate, plano-convex, 10-15 mm, thickly leathery, many veined, serrulate winged, apex with long beak, orifice deeply 2-toothed. Stigmas 3, rarely 2.

Two species: E Asia, North America; one species in China.

Lower Taxon

• Carex kobomugi Ohwi