Botanical name: Cyperus exaltatus Family: Cyperaceae (Sedge family)
Synonyms: Cyperus venustus, Cyperus festivus, Cyperus altus
Giant Sedge is a perennial sedge up to 2 m tall. Leaves with a purplish-brown sheath at the base, about as long as the flowering stems or longer, 3-15 mm wide, flat, with rough edges. Flowers are bonre in spikelets 4-18 mm long, 1-2 mm wide, yellow to brown, with no petals, in open umbels subtended by 3-6 leaflike bracts at the tops of the flowering stems. Each ray of the umbel is composed of spikelets arranged in spikes. Giant Sedge grows in water and mud. It is found in tropical Africa, SE Asia from India to Japan and southwards to southern Australia. Flowering: June-December.
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The flower labeled Giant Sedge is ...