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Schoenus Ligulatus
''Schoenus ligulatus'' is a species of sedge endemic to the western regions of the Western Cape Province of South Africa. Description The key diagnostic character of ''S. ligulatus'' are its linear-lanceolate spikelets and narrow elliptic nutlets. ''Schoenus exilis'' resembles ''S. ligulatus'', but the former is a shorter species (350 mm). In addition, the spikelets of ''S. exilis'' are shorter (mostly <4.5 mm) compared to those of ''S. ligulatus''. Another key difference between the two species is that ''S. exilis'' often has membranaceous ligules, whereas the ligules of ''S. ligulatus'' tend to be firmer. ''Schoenus quartziticus'' is also a similar species; however, it has broad elliptic nutlets and shorter spikelets (<4.0 mm) compared to those of ''S. ligulatus''. Similar to other sedges, plants in this group are very difficult to identify. It appears that part of this problem is caused by the tendency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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'' with over 2,000 species. These species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be found growing in almost all environments, many are associated with wetlands, or with poor soils. Ecological communities dominated by sedges are known as sedgelands or sedge meadows. Some species superficially resemble the closely related rushes and the more distantly related grasses. Features distinguishing members of the sedge family from grasses or rushes are stems with triangular cross-sections (with occasional exceptions, a notable example being the tule which has a round cross-section) and leaves that are spirally arranged in three ranks. In comparison, g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |