Cyperus substramineus

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Cyperus substramineus


Annual with fibrous, yellowish roots. Leaves very narrow, canaliculate, gradually acuminate, slightly scaberulous at the top, 1 mm wide; Inflorescence simple, spike-like or with a few short rays, congested, consisting of 2-15 spikelets. Stamens 2;


Asia-Tropical: India present; Malaya (Peninsular Malaysia present), Ceylon present, Farther India present, Kedah present, Khasia present, P. Penang present, W. Malesia present
From Khasia and Ceylon through India to Farther India and W. Malesia: Malay Peninsula (Kedah, P. Penang).


Closely allied to the widely distributed C. flavescens L., which is unknown from Malesia. C. substramineus is usually slenderer, its leaves and bracts are narrower, the lowest bract is nearly erect so that the inflorescence seems to be lateral, the spikelets are not patent, the glumes more acute, and the number of stamens is always 2 (3 in C. flavescens).
The roots are very aromatic, the stems and leaves extremely tough.


CAMUS 1912 – In: Fl. Gén. I.-C.: 29
Clarke 1884 – In: J. Linn. Soc. Bot.: 39
VALCK. SUR. 1898: Gesl. Cyp. Mal. Arch.: 54