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Fuirena Rottb.

Kingdom: Plantae Rank: Genus Parent: Cyperaceae Status: Valid

Common Names:

  • UMBRELLA SEDGE - English, United States of America
  • UMBRELLA-GRASS - English, United States of America

Morphological Description

Diagnosis: Perennials or annuals to 1 m tall, usually cespitose, rhizomatous or not so; culms (= stems) obtusely triangular to nearly round; leaves cauline, usually hairy, the lowermost sometimes bladeless; ligules tubular, scarious; inflorescences condensed, often head-like, of 110 ovoid, mostly bur-like spikelets, bracted; scales of spikelets numerous, spirally imbricate, usually with a very conspicuous, often recurved, bristle-like awn; perianth of 3 stalked-bladed, scalelike or paddle-like structures, the blade often thickened, expanded, or swollen at maturity and also typically with 3 perianth bristles alternating with the stalked-bladed structures; achenes stipitate, strongly 3-angled, without tubercle.


Notes: AA genus of ca. 30 species, cosmopolitan but particularly tropical and subtropical (Kral 2002a). In the past, some authors submerged Fuirena into Scirpus. (Named for Georg Fuiren, 15811628, a Danish botanist and physician)