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Published online by Cambridge University Press: 12 June 2017
The Southern naiad, Najas guadalupensis (Spreng.) Morong. is a submersed water weed commonly infesting water control systems in south Florida, especially in the areas underlain by calcareous deposits where the canal waters are mineralized. Dense growths of this plant appear to have become more prevalent in recent years following the removal of water hyacinths by the use of 2,4-D.