Cyperus dives
Cyperus dives is a plant in the genus Cyperus of the sedge family, Cyperaceae, which is found from south-west Syria to Africa, and from Pakistan to Vietnam.[2] The SANBI Red List of South African Plants assessed its conservation status as being of "Least Concern" in 2006.[4] DescriptionProtologue
TranslationThe stems are smooth, triangular, and grow to heights of 1.3–1.6 metres (4–5 ft). The basal leaves are about one metre (3 ft) long, and are rough at the top, on their edges, on their dorsal veins, and towards their apex on two main veins of their upper face, where they have very fine needle-like teeth. The umbel rays are five to ten in number; the largest are 15 centimetres (6 in) in length. The outer (leaf-like) bracts of the involucre are about .3–.6 metres (1–2 ft) long, and are rough and finely needled in the same way as the basal leaves. The spikelets are lanceolate, rather loose, 6–10 millimetres (0.2–0.4 in) long, showing on all sides of the umbel their sharp apices; they contain sixteen, twenty, and thirty flowers. Each flower has three stamens and a trifid style. The scales are ovoid, truncated at their base, briefly acuminate at the top, membranous, a slightly undulating and torn at the edges. Cyperus dives grows in the wet fields of the Delta: it is grown for cutting, to make mats from the stems split into strips. Cyperus dives and Cyperus alopecuroides L., grow together in Egypt, and serve the same purpose. They also grow in India. Sometimes, in herbaria, I have seen these two plants confounded. Cyperus alopecuroides does not have smooth spikelets; they are not lanceolate, but ovoid; their scales are not very tight, and fold inwards by the edges when drying; the styles are bifid. References
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