Cyperaceae Juss., nom. cons.

pronounced: sy-pee-RAY-see-eye

the sedge family

sedgeThe name is from the Greek κυπειρος (kypeiros), a sweet-smelling marsh plant. These are grass-like herbaceous plants, commonly found in wet or saturated conditions. Although they have a superficial resemblance to grasses, they are not closely related, and differ in many characteristics, particularly in the structure of the inflorescence. Sedges also usually have stems with triangular cross-section, and leaves that are spirally arranged in 3 ranks: grasses have alternate leaves forming 2 ranks. Sedge flowers are minute, and may be bisexual or unisexual. Each floret is in the axil of a chaffy bract and these are arranged spirally or distichously in spikelets. The perianth may be represented by scales or bristles in two whorls, or may be entirely lacking. The fruit is a 3-angled or lens-shaped achene.

Abildgaardia vaginata (syn.) - Brown's Fimbristylis

Cyperus brevifolia - Mullumbimby Couch

Cyperus exaltatus - Tall Flatsedge

Cyperus involucratus - Umbrella Sedge

Cyperus leiocaulon - Sedge

Cyperus rotundus - Nut Grass

Eleocharis dulcis - Chinese Water Chestnut

Fimbristylis brownii (syn.) -  Brown's Fimbristylis

Fimbristylis vaginata - Brown's Fimbristylis

Gahnia aspera - Saw-sedge

Scleria sphacelata - Razor Grass

Photograph © Donald Simpson 2013

Page last updated 11th April 2017







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