Scirpus is a genus of grass-like species in the sedge family Cyperaceae many with the common names club-rush, wood club-rush or bulrush (see also bulrush for other plant genera so-named). They mostly inhabit wetlands and damp locations.
About 120; see text
The taxonomy of the genus is complex, and under review by botanists. Recent studies by taxonomists of the Cyperaceae have resulted in the creation of several new genera, including the genera Schoenoplectus and Bolboschoenus; others (including Blysmus, Isolepis, Nomochloa, and Scirpoides) have also been used. At one point this genus held almost 300 species, but many of the species once assigned to it have now been reassigned, and it now holds an estimated 120 species.
Scirpus are rhizomatous perennial herbs, with 3-angled stems and flat grass-like leaves. The flowers are in clusters of small spikelets, often brown or greenish brown.:992 Some species (e.g. S. lacustris) can reach a height of 3 m, while S. sylvaticus is about 1.2 m and others, such as S. supinus, are much smaller, only reaching 20–30 cm tall.
Many species are common in wetlands and can produce dense stands of vegetation, along rivers, in coastal deltas and in ponds and potholes. Although flooding is the most important factor affecting its distribution, drought, ice scour, grazing, fire and salinity also affect its abundance. It can survive unfavourable conditions like prolonged flooding, or drought, as buried seeds
- (This list is incomplete, and may include some species now assigned to other genera.)
- Scirpus ancistrochaetus northeastern bulrush
- Scirpus atrocinctus black-girdle bulrush
- Scirpus atrovirens woolgrass bulrush
- Scirpus bicolor
- Scirpus campestris salt marsh bulrush
- Scirpus cespitosus deergrass
- Scirpus congdonii Congdon's bulrush
- Scirpus cyperinus - cottongrass bulrush
- Scirpus diffusus
- Scirpus divaricatus spreading bulrush
- Scirpus expansus Woodland beakrush
- Scirpus flaccidifolius reclining bulrush
- Scirpus fluitans floating club-rush
- Scirpus fluviatilis - river bulrush
- Scirpus georgianus Georgia bulrush
- Scirpus grossus Greater club-rush, Giant bulrush
- Scirpus hattorianus bulrush
- Scirpus lineatus drooping bulrush
- Scirpus longii Long's bulrush
- Scirpus mariqueter
- Scirpus microcarpus small-fruit bulrush
- Scirpus mucronatus
- Scirpus nevadensis Nevada bulrush
- Scirpus olneyi Olney bulrush = Schoenoplectus americanus
- Scirpus pacificus Pacific Coast bulrush
- Scirpus pallidus pale bulrush
- Scirpus paludosus salt marsh bulrush
- Scirpus pedicellatus stalked bulrush
- Scirpus pendulus pendulous bulrush
- Scirpus polyphyllus leafy bulrush
- Scirpus pumilus dwarf deergrass
- Scirpus pungens sharp club-rush
- Scirpus radicans
- Scirpus robustus salt marsh bulrush
- Scirpus supinus dwarf club-rush
- Scirpus sylvaticus wood club-rush
- Scirpus triqueter triangular club-rush
- Selected species in a broader view of the genus
Several hundred fossil fruits of Scirpus ragozinii have been described from middle Miocene strata of the Fasterholt area near Silkeborg in Central Jutland, Denmark. 35 fossil fruits of the extant Scirpus sylvaticus have been extracted from borehole samples of the Middle Miocene fresh water deposits in Nowy Sacz Basin, West Carpathians, Poland.
Scirpus species are often planted to inhibit soil erosion and provide habitat for other wildlife. They are also used in some herbal remedies; the plant's rhizomes are collected in the autumn and winter and dried in the sun before use.
- "Kew World Checklist of Selected Plant Families". Royal Botanic Garden Kew. Retrieved 9 December 2019.
- Stace, C. A. (2019). New Flora of the British Isles (Fourth ed.). Middlewood Green, Suffolk, U.K.: C & M Floristics. ISBN 978-1-5272-2630-2.
- Auclair, A. N. D., Bouchard, A. and Pajaczkowski, J. (1976). "Plant standing crop and productivity relations in a Scirpus–Equisetum wetland". Ecology. 57: 941–52.CS1 maint: uses authors parameter (link)
- Day, R. T., Keddy, P. A., McNeill, J., and Carleton, T. (1988). "Fertility and disturbance gradients: a summary model for riverine marsh vegetation". Ecology. 69: 1044–54.CS1 maint: uses authors parameter (link)
- Gough, L. G., Grace, J. B., and Taylor, K. L. (1994). "The relationship between species richness and community biomass: the importance of environmental variables". Oikos. 70: 271–9.CS1 maint: uses authors parameter (link)
- van der Valk, A. G. (1989). Northern Prairie Wetlands. Ames, IA: Iowa State University Press.
- Keddy, P.A. (2010). Wetland Ecology: Principles and Conservation (2 ed.). Cambridge, UK: Cambridge University Press.
- van der Valk, A. G. and Davis, C. B. (1976). "The seed banks of prairie glacial marshes". Canadian Journal of Botany. 54: 1832–8.CS1 maint: uses authors parameter (link)
- Busck, August (1914). "New Microlepidoptera from Hawaii". Insecutor Inscitiae Menstruus. 2 (7): 106.
- Zimmerman, Elwood C. (1978). Insects of Hawaii (PDF). 9 Microlepidoptera. Honolulu: The University Press of Hawaii. pp. 1003–1015.
- Common, I. F. B. (1960). "A revision of the Australian Stem Borers hitherto referred to Schoenobius and Scirpophaga (Lepidoptera: Pyralidae, Schoenobiinae)". Australian Journal of Zoology. 8 (2): 307–347. doi:10.1071/ZO9600307. Retrieved 9 December 2019.
- Angiosperm Fruits and Seeds from the Middle Miocene of Jutland (Denmark) by Else Marie Friis, The Royal Danish Academy of Sciences and Letters 24:3, 1985
- Łańcucka-Środoniowa M.: Macroscopic plant remains from the freshwater Miocene of the Nowy Sącz Basin (West Carpathians, Poland) [Szczątki makroskopowe roślin z miocenu słodkowodnego Kotliny Sądeckiej (Karpaty Zachodnie, Polska)]. Acta Palaeobotanica 1979 20 (1): 3-117.
- Genus Scirpus
- Genus Scirpus
- Scirpus (Cyperaceae)
- "What Is 'Schoenoplectus americanus'?" and "Should We Reject The Name 'Scirpus americanus'?"
- Edibility of Scirpus: Edible parts and identification of Scirpus
- Muntz, Philip A. A California Flora. Berkeley, CA: University of California Press, 1973, copyright 1959
- Muntz, Philip A. A California Flora: Supplement’’. Berkeley, CA: University of California Press, 1976 (Scirpus lacutris, validus, glaucus, p. 183))
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