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![]() Blysmus |
![]() Bolboschoenus |
![]() Carex |
![]() Cladium |
![]() Cyperus |
![]() Eleocharis |
![]() Eleogiton |
![]() Eriophorum |
![]() Isolepis |
![]() Kobresia |
![]() Rhynchospora |
![]() Schoenoplectus |
![]() Schoenus |
![]() Scirpoides |
![]() Scirpus |
![]() Scleria |
![]() Trichophorum |
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[SCHOENUS] Bog-Rushes
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Black Bog-Rush (Schoenus nigricans) | Photo: © Dawn Nelson |
[CYPERUS] Galingales
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Galingale (Cyperus longus) | Photo: © RWD |
Pale Galingale (Cyperus eragrostis) | Photo: (CC by 2.0) Geoff Toone |
[BLYSMUS] Flat-Sedges
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Flat-Sedge (Blysmus compressus) | Photo: © Dawn Nelson |
Saltmarsh Flat-Sedge (Blysmus rufus) | Photo: © RWD |
[CAREX] Sedges (and Club-rushes and Spike-rushes).
![]() Almost all true sedges have separate male and female catkins, but both on the same plant - that is, they are monoecious. Meaning, un-like grasses, the florets themselves are not bisexual. The single stem is triangular in cross-section, with its exact shape (edges flat, concave or convex; corners sharp or rounded) and whether it is hollow or not, and if so, the size and shape of the hollow tube within (whether round, triangular(ish), large, medium, or small diameter) of great importance in identification. The other important characteristics is whether the ovaries have two or three styles, and the exact shape and size of the ovaries and whether they are beaked or not. Also diagnostic is the number of stigmas; whether two or three. The shape and spacing of the two brown bracts (looking like shields) on the side of the ovaries, and the shape of the separating space (the sinus) between the bracts can all help pin down the ID. |
POPULATION 1
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POPULATION 2
POPULATION 3
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The hybrid charts of the Sedges is very large and unwieldy, so the Author has split it up into three separate non-overlapping populations to make the graphs smaller. This also has the added benefit of aiding the visualization of those species which are inter-related, as opposed to those which may not now be as closely related. Your Author does not know whether, or not, these three separate non-hybridizing populations (or at least not in the UK) have any meaning in the real world; he leaves that to taxonomists. Surely your Author is not the first person to spot this? |
Star Sedge (Carex echinata) | Photo: © RWD |
False Fox Sedge (Carex otrubae) | Photo: © RWD |
Glaucous Sedge (Carex flacca) | Photo: © RWD |
Pendulous Sedge (Carex pendula) | Photo: © RWD |
Remote Sedge (Carex remota) | Photo: © RWD |
Cyperus Sedge (Carex pseudocyperus) | Photo: © RWD |
Lesser Pond-Sedge (Carex acutiformis) | Photo: © RWD |
Pill Sedge (Carex pilulifera) | Photo: © Dawn Nelson |
Long-Bracted Sedge (Carex extensa) | Photo: © RWD |
Tawny Sedge (Carex hostiana) | Photo: © RWD |
Flea Sedge (Carex pulicaris) | Photo: © Dawn Nelson |
Slender Tufted-Sedge (Carex acuta) |
Common Sedge (Carex nigra) | Photo: © RWD |
Bottle Sedge (Carex rostrata) | Photo: (CC by 2.0) Geoff Toone |
Brown Sedge (Carex disticha) | Photo: (CC by 2.0) Geoff Toone |
Brown Sedge (Carex demissa) | Photo: (CC by 2.0) Geoff Toone |
Curved Sedge (Carex maritima) | Photo: © Dawn Nelson |
Divided Sedge (Carex divisa) | Photo: (CC by 2.0) Geoff Toone |
Dwarf Sedge (Carex humilis) | Photo: (CC by 2.0) Colin Pope |
Greater Pond-Sedge (Carex riparia) | Photo: (CC by 2.0) Geoff Toone |
Grey Sedge (Carex divulsa) | Photo: (CC by 2.0) Geoff Toone |
Hair Sedge (Carex capillaris) | Photo: © Dawn Nelson |
Hairy Sedge (Carex hirta) | Photo: © RWD |
Oval Sedge (Carex leporina) | Photo: (CC by 2.0) Geoff Toone |
Prickly Sedge (Carex muricata) | Photo: (CC by 2.0) Geoff Toone |
Spring Sedge (Carex caryophyllea) | Photo: © RWD |
[BOLBOSCHOENUS] Sea Club-Rush
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Sea Club-Rush (Bolboschoenus maritimus) | Photo: © RWD |
[ERIOPHORUM] CottonGrasses
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Hare's-Tail CottonGrass (Eriophorum vaginatum) | Photo: © RWD |
Common CottonGrass (Eriophorum angustifolium) | Photo: © RWD |
[TRICHOPHORUM] Deergrasses
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Northern Deergrass (Trichophorum cespitosum) | Photo: © RWD |
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