Cyperus rotundus Linnaeus 1753

Cyperus rotundus Linnaeus 1753 = Chlorocyperus rotundus (L.) Palla = Cyperus tuberosus Rottb. Materials Type status: Other material. Occurrence: catalogNumber: UPH-00002334; occurrenceRemarks: littoral zone, moist sandy – loamy shoreline; recordNumber: 7; recordedBy: Fadil Millaku; individualCount: 10; occurrenceStatus: Present; occurrenceID: E3E1056D-70A1-521A-AB78-C0CAD6FF877D; Taxon: taxonID: urn:lsid:ipni.org:names:305796-1; scientificNameID: urn:lsid:ipni.org:names:305796-1; acceptedNameUsage: Cyperus rotundus L.; parentNameUsage: Cyperaceae; originalNameUsage: Cyperus tuberosus Rottb.; nameAccordingTo: Jiménez-Mejías, P. & Luceño, M. 2011 +: Cyperaceae. – In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Published at https://europlusmed.org/.; kingdom: Plantae; phylum: Tracheophyta; class: Magnoliopsida; order: Poales; family: Cyperaceae; genus: Cyperus; specificEpithet: rotundus; taxonRank: species; scientificNameAuthorship: L.; nomenclaturalCode: IPNI; taxonomicStatus: Accepted; Location: higherGeographyID: SE Europe; higherGeography: SE Europe; continent: Europe; country: Kosovo; countryCode: XK; stateProvince: Gjakovë; county: Gjakovë; municipality: Gjakovë; locality: Radoniq lake; verbatimLocality: Radoniq lake; verbatimElevation: 463 m; locationRemarks: Radoniq Lake – littoral zone, moist sandy – loamy shoreline: 42.477481°N, 20.410191°E, 463 m a. s. l., 12 Aug. 2025. Leg.: Fadil Millaku; verbatimCoordinates: 42.477481°N, 20.410191°E; coordinatePrecision: 2; georeferenceProtocol: GPS; Identification: identifiedBy: Fadil Millaku; dateIdentified: 2025; identificationReferences: Kukkonen, I. (1980): Cyperus. — In: Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. (eds.), Flora Europaea, Vol. 5: 282–292. Cambridge University Press, Cambridge. Taxon discussion This taxon has not previously been reported for the flora of Kosovo, thus representing its first confirmed record in Kosovo. The present record is based on field-collected material that was taxonomically verified using current regional floras and compared with herbarium material from UPH. Its occurrence extends the known distribution range of the species in the central Balkans and contributes to completing the floristic knowledge of Kosovo. No earlier confirmed records exist in the national or regional literature. Notes The species was recorded along the shores of Radoniq Lake, where it occurred on moist, sandy – loamy substrates within the upper littoral zone (Fig. 1 d). At the site, plants were growing in open, periodically exposed shoreline patches, characteristic of fluctuating water levels. Ecologically, C. rotundus is a thermophilous species with a broad ecological amplitude, frequently associated with disturbed or seasonally moist habitats. In a wider biogeographical context, it is a pantropical – subtropical taxon that reaches its northernmost European distribution in parts of south-eastern Europe. The occurrence of this species in Kosovo indicates the presence of suitable microhabitat conditions for this warm-adapted sedge along the shores of Radoniq Lake.