Cyperaceae

Belongs within: Poales.Contains: Kobresia, Chrysitricheae, Hypolytreae, Bisboeckelereae, Scleria, Cryptangieae, Schoeneae, Carpheae, Rhynchospora, Scirpeae, Eleocharis, Abildgaardieae, Fuireneae. The Cyperaceae, sedges, are a cosmopolitan group of grass-like plants commonly found in damp, open habitats. Phylogenetic analysis supports a basal division between the subfamilies Mapanioideae and Cyperoideae. Members of the Mapanioideae produce flowers in a ‘pseudanthium’ that is… Continue reading Cyperaceae

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Scleria

Belongs within: Cyperaceae. Scleria is a genus of sedges bearing unisexual flowers, with female flowers not surrounded by a perigynium. Members include S. pygmaea, a small annual (rarely more than five centimetres in height) found in northern Australia in which the two upper glumes of the female spikelet enclose the nut (Bentham 1878). Characters (from Bentham… Continue reading Scleria

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Cypereae

Belongs within: Fuireneae.Contains: Isolepis, Ficinia, Cyperus subgenus Mariscus, Cyperus subgenus Pycreus, Cyperus section Papyrus. The Cypereae are a group of sedges in which flowers are all hermaphroditic, and glumes are distichously arranged and all floriferous except the lowest one (Moore & Edgar 1970). Embryos are relatively oblong or linear in shape (Semmouri et al. 2019).… Continue reading Cypereae

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Carex

Belongs within: Scirpeae.Contains: Carex subgenus Carex, Carex subgenus Vignea, ‘Uncinia’ section Uncinia. Carex is a large genus (over 1500 species) of sedges found in cool and temperate parts of the world. Some species are agricultural weeds in pasture and damp habitats. Members of the genus produce unisexual flowers with female flowers enclosed in a utricle.… Continue reading Carex

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Carex section Echinochlaenae

Belongs within: Carex subgenus Carex. The section Echinochlaenae of the genus Carex is a group of sedges in which the inflorescence is a compound raceme or cluster of spikes, the utricle-beak is short, and there are two or three stigmas (Moore & Edgar 1970). Carex sect. Echinochlaenae |–C. (ser. Aculeatae) dipsacea Berggren 1878 [incl. C.… Continue reading Carex section Echinochlaenae

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Kobresia

Belongs within: Cyperaceae. Kobresia is a North temperate genus of sedges which has flowers and fruit contained within a perigynium that is open along one side (Hickman 1993). Characters (from Hickman 1993): Perennial. Leaves basal, sheathing. Inflorescence with spikelets in terminal clusters, spiraled, subtended by spikelet bract, generally 1–2-flowered, lower flowers pistillate, upper staminate. Flower… Continue reading Kobresia

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Scirpeae

Belongs within: Cyperaceae.Contains: Kyllinga, Scirpus, Eriophorum, Carex. The Scirpeae are a tribe of sedges in which all flowers are hermaphroditic, and the glumes are spirally arranged and all floriferous except the lowest (Healy & Edgar 1980). Members of the tribe are found in wetland habitats, some in standing water. Phylogenetic analysis indicates that the group… Continue reading Scirpeae

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Schoenoplectus

Belongs within: Fuireneae. Schoenoplectus is a genus of sedges with thick, woody rhizomes, with the inflorescence apparently lateral as a result of the bract appearing as a continuation of the stem, hypogynous bristles present, and nuts more than two millimetres long (Healy & Edgar 1980). Schoenoplectus |–+–S. californicusSB19 [=Scirpus californicusH93] | `–S. litoralisSB19 `–+–S. lacustris… Continue reading Schoenoplectus

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Isolepis

Belongs within: Cypereae. Isolepis is a genus of slender rushes with leaves less than one millimetre wide or absent, or with slender rhizomes, and with hypogynous bristles absent (Healy & Edgar 1980). <==Isolepis |–+–I. rubicundaSB19 | `–+–‘Scirpus’ sect. EleogitonME70 | | |–I. crassiuscula Hooker 1858ME70 [=Scirpus crassiusculus (Hooker) Bentham 1878HE80] | | |–I. fluitans (Linnaeus)… Continue reading Isolepis

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Oreobolus

A mound of rushes Published 19 September 2022 Numerous plants found growing in frigid or alpine habitats have adopted a cushion growth habit. They grow in compact mounds with leaves packed tightly together, resisting heat loss or damage from the elements. Among the adopters of this habit are the tuftrushes of the genus Oreobolus. Oreobolus… Continue reading Oreobolus