Cyperus rotundus subsp. rotundus
Content
Description
Perennial.
Leaves several, flat, rigidulous, scabrid on the margins in the upper part, gradually acuminate, dark green above, light green beneath, 2-6 mm wide, lower sheaths reddish brown, soon disintegrating.
Inflorescence simple or compound, up to 15 by 10 cm, usually much smaller.
Stamens 3;
Distribution
Asia-Tropical, warmer parts of the whole world present
Widely distributed in the warmer parts of the whole world; very common throughout Malesia.
Uses
The young tubers are sometimes eaten and used in native medicine. The leaves furnish a rather good pasturage.
Notes
Var. salsolus , is a small, coastal form. The Malesian specimens cited are to me normal C. rotundus.
Specimens in which the spikelets are exceedingly elongated, up to 5 cm long, and up to 100-flowered, have been described as var. centiflorus CLARKE, l.c. (? var. elongatus ). The strong accrescence of the spikelets is probably due to the fact that the flowers do not set fruit. The variety has no taxonomical value.
For C. distans X C. rotundus see p. 660.
Specimens in which the spikelets are exceedingly elongated, up to 5 cm long, and up to 100-flowered, have been described as var. centiflorus CLARKE, l.c. (? var. elongatus ). The strong accrescence of the spikelets is probably due to the fact that the flowers do not set fruit. The variety has no taxonomical value.
For C. distans X C. rotundus see p. 660.