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  • COMMON NAME: Nut grass, Nutsedge, Purple nutsedge.
  • ARABIC: سعد
  • BOTANICAL NAME: Cyperus rotundus L.
  • SYNONYMS: Chlorocyperus rotundus
  • FAMILY: CYPERACEAE
  • KIND: Native
  • EMIRATE: Abu-Dhabi , Dubai , Fujairah
  • CATEGORIES: Medicinal (M) Apiculture (A) Other Uses (O)
  • GROWTH FORMS: Herbs
  • HABITATS: Sandy
  • TYPES: Perennial
  • REMARKS: Wadi Wurayah National Park (WWNP). Plants used by honeybees for nectar collection for honey production. Variable species, some with long spikelets (up to 5 cm).
Flora of the United Arab Emirates V1 & 2, Fawzi M.Karim, Nael M.Fawzi; reviewed by Fatima Al-Ansary. Al-Ain: United Arab Emirates University, 2007. https://www.floraofqatar.com/cyperus_rotundus.htm https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:305797-1 Gary R. Feulner. 2014. The Flora of Wadi Wurayah National Park Fujairah, United Arab Emirates. V.V. Byalt, V.M. Korshunov, M.V. Korshunov. Cadaster of the Flora of Fujairah Emirate (United Arab Emirates). Al Fujairah 2021. M.V.D jongbloed, G.R. Fuelner, B. Boer, A.R. Western. the comprehensive guide to the wild flowers of the United Arab Emirates. Environmental research and wildlife Development agency, Abu Dhabi, 2003.
Honey nectar plants. Tubers used as an insecticide. Seeds used as a diuretic, for treating earache, teeth and gum problems. Powdered rhizomes used as insecticide or made into ointment for bee stings and insect bites. Rhizomes eaten to treat worm infestations, regulate menstruation.

A perennial, stoloniferous, glabrous sedge, with rgizome bearing oblong-ellipsoid, blackish tubers. Culm usually striate, solitary, erect, trigonous, leafy at base, 15-50 cm high. Leaves radical, as long as the culms, acuminate, smooth, 1-nerved; sheath reddish-brown. Umbellate inflorescence, simple or compound, rays of umbels unequal, often subtended by several, unequal, leaflike bracts, exceeding the inflorescence. Spikelets 10-20 mm long, linear, many flowers. Glumes boat-shaped, brownish-red, acute, with green keel. Stamens 3. Stigma 3. Achnese 1-2 mm long, obovoid to ellipsoid, trigonous, brownish-black, shining. A variable species with many varieties. 

Flowering from November to May.
A weed of wet ground around fields and gardens.
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