Cyperus laevigatus L.

General Appearance

Cyperus laevigatus L. it is a perennial or rhizomatous geophyte, up to (5-)20-65 cm, forming small tufts or stems in rows. Rhizome horizontal, creeping, (1-)1.5-3 mm diam., covered with dark brown or reddish scales. Stem, 0.5-5 mm diam., terete or obtusely trigonous, yellow green or grey green, smooth. Leaves mostly much reduced; sheaths up to 20 cm, brown to dark brown, sometimes reddish, mouth margin concave, ligule 0. blade up to 10 or reduced to a point. Inflorescence capitate, pseudo lateral, 7-25 mm, one cluster of (1-)3-10(-more than 30) spikes, . Nut, 1.3-1.7 x 1 mm, ellipsoid or obovoid, grey-brown to black-brown.

Flowering in: Almost the year.

Life Form

G

Phytochoria

The native range of this species is Tropics & Subtropics.

Distribution in Libya

Al-Jafarah Plain: Near hot water spring c. 11 km east of Tripoli 1978

Sirte Plains: Sirte 2015, 2016

Benghazi Plain: Benghazi, near water 1977 Wadi El-Enaghar 2021

Jabal Nafusa: Tarhuna 1977 Sharshara, near water 1978

Al-Jabal Al-Akhder: Wadi Lathrun, c. midway along the coaslal road between Derna and Susa in most ground near a ditch close to the sea coast 1967 Wadi Derna 1968, 1970

Al-Jufra area: EL-Jufra 2018

Fezzan area: El-Hofra Traghen 1933 (96 km) from the Highway to Brak 1973 Mafu, Al-Mandura, Truna Zallaf sand dunes area on the salty lake shores 1975 (41 km )from Brak to Hun, on hot water spring 1978 Gaber-Oun Lake 2012

Al-Kufra area: Al-Kufra 2018

Ghat area: Ghat in and near the pond 1976 Ghat (Between Acacus and Tassili Mountains) 2004 Wadi Tanezzuft 2012

Jabal Al-Uwinat: Gebel Uweinat 1968

Notes

Wild in Libya, on the hot water spring and on the salty lake shores.

This species is accepted: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:304938-1

Link of images: https://atlas-sahara.org/Cyperaceae/Cyperus%20laevigatus/Cyperus%20laevigatus.html, https://www.floraofqatar.com/cyperus_laevigatus.htm, https://www.actaplantarum.org/flora/flora_info.php?id=508084

For more information

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:304938-1, https://www.ipni.org/n/304938-1, https://www.worldfloraonline.org/taxon/wfo-0000376262, https://www.gbif.org/species/2713559, https://africanplantdatabase.ch/en/nomen/specie/38125/cyperus-laevigatus-l, https://atlas-sahara.org/Cyperaceae/Cyperus%20laevigatus/Cyperus%20laevigatus.html, https://www.ksanature.com/plants/cyperus_laevigatus/, https://www.actaplantarum.org/flora/flora_info.php?id=508084, https://sernecportal.org/portal/taxa/index.php?taxon=829&clid=3110, https://www.calflora.org/app/taxon?crn=2586, https://en.wikipedia.org/wiki/Cyperus_laevigatus

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. Page. 14.

Second: Researches and PhD theses, master theses, Sorted by Newest:

Omar, N., El-Mghrbi, N.G., Rahil, R.O., Alaib, M.A., Alzerbi, A.K. (2021) Floristic Composition and Plant Diversity of Western Part of Wadi El- Enaghar, Libya. Species-22(70), 2021. pp. (204-217). http://www.discoveryjournals.org/Species/current_issue/2021/v22/n70/index.htm, http://www.discoveryjournals.org/Species/current_issue/2021/v22/n70/A4.pdf

Floristic Composition and Plant Diversity of Western Part of Wadi El- Enaghar, Libya. 2021.-مضغوط

EL-Barasi,Y.M., Bader, B.M., Barrani. M.W., EL-Hashani, N.M. and Alamrouni, A.O. (2018) Ecological studies on EL-Jufra Desert Depression., https://www.researchgate.net/profile/Yacoub-El-Barasi, https://www.researchgate.net/publication/323990883_Ecological_studies_On_EL-Jufra_Desert_Depression

Ecological studies on EL-Jufra Desert Depression. 2018

Mohamed, M. I. & Bouhabbal, A.A. (2018) A study on plant diversity in the Kufra depression. The fifth Scientific Conference of Environment and Sustainable Development in the Arid and Semi- Arid Regions (ICESD) -From 23-25 July-2018. Ajdabiya University-Libya. (In Arabic).

Elsayed, N. (2016) Relationship between Vegetation and Soil Seed Bank at Protected Versus Unprotected Sites at Coastal Habitats in Libya.CATRINA (2016), 15 (1): 59-68. https://scholar.google.com.eg/citations?user=mSAskW0AAAAJ&hl=en , https://cat.journals.ekb.eg/article_18337_76652686b5c99f5fd479aebab87fbcb4.pdf

Vegetation and Soil Seed Bank at Protected Versus Unprotected Sites at Coastal Habitats in Libya. 2016

Elsayed M. A. N. (2015) Floristic Composition of the Plant Cover at Surt Region in Libya. Catrina (2015), 12 (1): 63-71-2010 By the Egyptian society for environmental SCIENCES. https://cat.journals.ekb.eg/article_18403_37c687e375b9144800a15704e68ebad7.pdf

Floristic Composition of the Plant Cover at Surt Region in Libya. 2015

Al-Mathnani, A. M., Ali Elssaidi, M. and Mohamed, M. I. (2012) Diversity and Ecological Succession around Gaber-Oun Hypersaline Lake Ecosystem-Libya. 2nd International Conference on Ecological, Environmental and Biological Sciences (EEBS’2012) Oct. 13-14, 2012 Bali (Indonesia). https://www.researchgate.net/profile/Albduaslam-Almathnani, https://www.researchgate.net/scientific-contributions/Mohamed-Ali-Elssaidi-2219147686

Diversity and Ecological Succession Around Gaber-Oun Hypersaline Lake. 2012

Mukassabi, T.A, Ahmidat, G., Sherif, I.M., ELMogasapi, A. (2012) Checklist and life forms of plant species in contrasting climatic zones of Libya. Biological Diversity and Conservation – 5 / 3 (2012) https://dergipark.org.tr/en/pub/biodicon/issue/55888/765799 , https://www.researchgate.net/publication/259357995_Checklist_and_life_forms_of_plant_species_in_contrasting_climatic_zones_of_Libya

Checklist and life forms of plant species in contrasting climatic zones of Libya. 2012

Ahmidat, Gh. (2004) Study of the vegetation cover of the area between the Acacus Mountains and the Tassili Mountains (Ghat). Master Thesis. Department of Botany.College of Science. Sebha University. Libya. (In Arabic).