Cyperus cyperinus (RETZ.) VALCK. SUR. var. maximus (CLARKE) KÜK. f. curvatus VALCK. SUR.
Content
Distribution
Asia-Tropical: Borneo present; India present; Jawa (Jawa present); Sumatera (Sumatera present), Krawang present, Mindanao present, Sumbawa present, W. Java present, Wijnkoopsbaai present
Malesia: W. Java (Wijnkoopsbaai, JUNGHUHN; Krawang, BLUME). Not recently collected.
India; in Malesia: Sumatra, Java, Borneo, Sumbawa, Mindanao.
Notes
Shows several characters of C. cyperoides, but the nut is that of C. cyperinus.
By KÜKENTHAL () referred to C. cyperinus var. laxatus (CLARKE) KÜK., though the specimens on which the forma was based are cited (l.c. 526) under C. paniceus (ROTTB.) BOECK. By its slender habit similar to this species, but differing by the absence of stolons, the larger, often 2-flowered spikelets, and the larger nuts.
The Malesian specimens cited by KÜKENTHAL, l.c., under C. cyperinus var. pictus (NEES) KÜK. and var. bengalensis (CLARKE) KÜK. are in my opinion typical C. cyperinus.
The Malesian specimens cited by KÜKENTHAL, l.c., under C. cyperinus var. pictus (NEES) KÜK. and var. bengalensis (CLARKE) KÜK. are in my opinion typical C. cyperinus.