Cyperus difformis (weed)
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Cyperus difformis (weed) L. - (smallflower umbrella-sedge)
The sedge is a weed of rice in tropical and subtropical regions which can form dense mats and can cause losses of up to 50%. It is mainly a problem in contaminated aerial sown rice. The plant grows to a height of up to 100 cm. The inflorescence is umbrella-shaped and the flowers are greenish brown to purplish and cluster densely to form round flower heads. The plant produce a large number of brown seeds, about ½ mm long, through which it propagates. It grows in flooded or very wet soil, but does not tolerate deep flooding.
|• English:||smallflower umbrella-sedge
|• Français:||souchet à petites fleurs
For details see the respective page in Wikipedia.