Cyperus serotinus
Species of sedge From Wikipedia, the free encyclopedia
Species of sedge From Wikipedia, the free encyclopedia
Cyperus serotinus is a species of sedge that is native to parts of Europe and Asia.[1]
Cyperus serotinus | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Cyperaceae |
Genus: | Cyperus |
Species: | C. serotinus |
Binomial name | |
Cyperus serotinus | |
The species was first formally described by the botanist Christen Friis Rottbøll in 1773.[1]
A moderately tall (30-70(120) cm) long-creeping sedge (with tubers) with solitary, triangular stem, leaves broad (4–10 mm), minutely rough-toothed (antrorsely-scabrid), diverging from the stem a little distance up, leaving a bare higher stretch of stem, the leaves as long as the stem or a little more. The 2-3(5) leafy bracts under the inflorescence resemble the leaves and much exceed the inflorescence.
The inflorescence is clearly terminal and composed usually of a number (5-10(15)) of unequal radiating axes ("rays", to 15 cm), themselves divided, with each ultimate axis unwinged, usually holding a fair number (7-14) of flat spikelets that are well-separated, forming a loose or slightly congested ladder of stalked, projecting spikelets, with even the end spikelets separated from neighbouring ones.
The spikelets are 2–3.5 mm wide ((5)10-15(30) mm long), each composed of 8-30 florets with broad scale-like glumes (2-2.5 x 1.5–2 mm) with wide pale margins and rounded tip, each floret maturing to hold a dark nut (1-1.2 mm, 2-faced, there being 2 barely-protruding stigma for the flower). .[2][3][4][5]
North Mediterranean, Southern Asia - Afghanistan, Albania, Assam, Austria, Bangladesh, Bulgaria, Cambodia, Central European Rus, China North-Central, China South-Central, China Southeast, Corse, East Aegean Is., France, Hungary, India, Inner Mongolia, Iran, Italy, Japan, Kazakhstan, Kazan-retto, Kirgizstan, Korea, Manchuria, Nansei-shoto, North Caucasus, Pakistan, Portugal, Primorye, Romania, South European Russi, Spain, Tadzhikistan, Taiwan, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Uzbekistan, Vietnam, West Himalaya, Xinjiang, Yugoslavia.[1]
Shores, watersides, ditches, wet grasslands, reed beds, rice fields, tidal marshes; Turkey 0–200 m, Spain 0–1000 m.[3][2][4]
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