Pontederia


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Pontederia cordata

Pontederia is a genus of tristylous aquatic plants, members of which are commonly known as pickerel weeds Pontederia is endemic to the Americas, distributed from Canada to Argentina, where it is found in shallow water or on mud The genus was named by Linnaeus in honour of the Italian botanist Giulio Pontedera

Pontederia plants have large waxy leaves, succulent stems and a thick pad of fibrous roots The roots give rise to rhizomes that allow rapid colonization by vegetative reproduction Species are perennial, and produce a large spike of flowers in the summer There is a species of bee Dufourea novaeangliae that exclusively visits Pontederia cordata; waterfowl also eat the fruit of the plant

Pontederia cordata, and another member of the family, Eichhornia crassipes, have become invasive in many tropical and temperate parts of the globe, but are, on the other hand, efficient biological filters of polluted water in constructed wetlands1

Speciesedit

  • Pontederia cordata L
  • Pontederia parviflora Alexander
  • Pontederia rotundifolia Lf
  • Pontederia sagittata CPresl
  • Pontederia subovata Seub Lowden
  • Pontederia triflora Endl ex Seub GAgostini, DVelázquez & JVelásquez
  • Pontederia angustifolia Pursh, Frederick Traugott

Referencesedit

  1. ^ Kadlec, Robert H; Scott Wallace 2008 Treatment Wetlands 2 ed CRC Press p 97 ISBN 978-1-56670-526-4 

External linksedit

  • Google Books - Creating Freshwater Wetlands by Donald A Hammer
  • Media related to Pontederia at Wikimedia Commons
  • Data related to Pontederia at Wikispecies


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