Umbrella-Sedge (Fuirena)
Description
They are perennial or annual, cespitosas or rhizomatous plants ; Foliaceous culms, solids, teretes or angulations, rigid; Hermaphrodite plants. Leaves with lanceolate-linear or essentially lamellar sheets; Sheath strong, closed, without ligula and rigid. Inflorescence a single or terminal spikelet fasciculus, or one or more dense peaks composed of glomeruli, or sometimes pinnate spikelets; Spikelets lanceolate-ovoid or cylindrical, of many soft scales, markedly ribbed-spit, imbricated in spiral, thin, greenish, all fertile except a few lower; Perfect florets, perianth in 2 sets of bristles, 3 internally laminated, the outer ones simple, or less frequently the perianth of a single laminated or laminated series; Stamens 2 or 3; Carpels 3, trifid style, linear stigmas. Fruit mainly triquetro and stipulated with a pronounced thin face, this articulated to the apex terete and deciduous of the style.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Cyperales
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Family: Cyperaceae
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Genus: Fuirena
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