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Cyperus fuscus L.,  it is an annual plant, up to 10-30 cm, forming small tufts. Stem 1-1.5 mm diam., trigonous, smooth. Leaves basal, shorter than stem; sheaths 20-40 mm, brown or reddish brown, mouth margin concave, ligule  0.7 mm, scarious, brown, arch of attachment as high as wide or higher, blades 2-3 mm wide, flat or keeled, margins smooth, apex long, trigonous, acute, scabrous. Inflorescence an irregular, spreading multiple spike, primary branches often up to 30 mm, with tubular prophyll, ending into cluster of to  50 spikes, lowest 2-3 bracts foliose, 3-10 (20) cm, sheath-less, margins and midnerve below scabrous, base with scarious margins. Spikes 3-15 x 1.5-2 mm, compressed, tight, with 10-40 glumes; rachis laterally compressed or quadrangular, brown or, usually, dark reddish brown, shiny, almost straight, internodes  0.5 mm, glumes 1-1.3 mm, cymbiform, mucronate, sides wide, scarious, usually dark reddish brown, basal margins protruding, scarious. Stamens 2, stigmas 3, sometimes 2. Nut  0.8 mm, ellipsoid, trigonous or convex, lateral angles sharp, yellow-brown.  Life Form: Th,   Flowering in: May-Sep,   Vern:———–,   Phytochoria: S.Cosm, The native range of this species is Macaronesia, Europe, Medit. to China.   Notes: Wild in Libya/

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Distribution in Libya
Al-Jabal Al-Akhder
Near old Harbour E. of Derna 1951


Bibliographic references:  
First: Encyclopedia Flora of Libyan:  
Jafri, S.M.H. & El-Gadi, A. (1985) Flora of Libya, Cyperaceae  Vol.  (120) Department of Botany, Al-Faateh Univ., Tripoli, Libya.
Second: Researches and PhD theses, master theses , Sorted by Newest: pdf files