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Cyperus rotundus
Cyperus rotundus
Topalak
Distinguished from C.longus by its slender rhizomes bearing sparse narrow scales and sometimes tubers; leaves borne only near base of 10-60 cm stems; primary rays less than 10 cm; nut 2/5 x glumes, obovate, trigonous, blackish. Fl. 7-9. River beds, damp fields, cultivated ground, roadsides etc., s.l.-660 m.
Mediterranean area, S.W., C. & E. Asia, India, tropical & S. Africa, Australasia, S., C. & southern N. America.
