Cyperus rotundus L.
Family: CYPERACEAE
Genus: Cyperus
Catalan common name: Jonça. Jonça de cordellar.
Spanish common name: Castañuela. Juncia real. menor o redonda.
Province distribution: Alacant. Balearic Islands. Barcelona. Castelló. Girona. Lleida. Tarragona. València.
Distribution in the islands: Mallorca. Menorca. Ibiza. Cabrera.
General distribution (Phytogeography): Some regions
IUCN Category: Least concern
Flowering time: JanFebMarAprMayJunJulAugSepOctNovDec
Life-forms: Geophyte.
Habitats: Cultivated fields, path and road sides, disturbed zones. Fields and cultivated zones.
Characteristics: A rhizomatous plant with small tubercles in the rhizomes; it colonizes orchards, and also path-sides, even inside towns. The inflorescences are made up of long, flat, brownish-red spikelets, which appear on leaf-stalks which look like radii. The stems are triangular. It is a relatively small plant, up to 40 cm.