Cyperus Sedge
''Cyperus'' is a large genus of about 700 species of Cyperaceae, sedges, distributed throughout all continents in both tropical and temperate regions. Description They are Annual plant, annual or perennial plants, mostly aquatic ecosystem, aquatic and growing in still or slow-moving water up to deep. The species vary greatly in size, with small species only tall, while others can reach in height. Common names include ''papyrus sedges'', ''flatsedges'', ''nutsedges'', ''umbrella-sedges'', ''galingales'', and ''zozoro'' (from Malagasy language, Malagasy). The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender Poaceae, grass-like leaves at the base of the plant, and in a Whorl (botany), whorl at the apex of the flowering stems. The flowers are greenish and Anemophily, wind-pollinated; they are produced in clusters among the apical leaves. The seed is a small Pyrena, nutlet. Ecology ''Cyperus'' species ...
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Middle Miocene
The Middle Miocene is a sub-epoch of the Miocene epoch (geology), epoch made up of two Stage (stratigraphy), stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene. The sub-epoch lasted from 15.97 ± 0.05 Ma (million years ago) to 11.608 ± 0.005 Ma. During this period, a sharp drop in global temperatures took place. This event is known as the Middle Miocene disruption, Middle Miocene Climatic Transition. For the purpose of establishing European land mammal ages, this sub-epoch is equivalent to the Astaracian age. References External links GeoWhen Database - Middle Miocene
Miocene, .02 Miocene geochronology, 02 Langhian, * Serravallian, * {{geochronology-stub ...
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