''Schoenus nigricans'' is a species of
sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' ...
known by the common names black bog-rush
[''Schoenus nigricans''.]
Online Atlas of the British and Irish Flora. Retrieved 13 June 2017.[Tucker, G. C. 2017]
''Schoenus nigricans''.
The Jepson eFlora. Retrieved 13 June 2017. and black sedge.
[''Schoenus nigricans''.]
Flora of North America. eFloras.org. Retrieved 13 June 2017. It is native to Eurasia, parts of Africa, Australia, and southern North America, including Mexico and the southernmost United States. It grows in many types of
wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The p ...
s and other moist and
alkaline habitat, including
marsh
A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...
es, springs, seeps,
peat bogs
A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg ...
,
heath
A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler a ...
, and
alkali flats. This perennial plant grows in low, tight clumps 20 to 70 centimeters tall, with threadlike leaves bearing wide, dark brown
ligules. The
inflorescence
An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...
is a small, flattened cluster of dark spikelets. The fruit is an
achene coated in a hard, white shell.
Image:Schoenus nigricans Texas.jpg, Detail of mature fruiting head
References
External links
''Schoenus nigricans''.CalPhotos.
nigricans
Plants described in 1753
Taxa named by Carl Linnaeus
Flora of Malta
{{Cyperaceae-stub