Polypogon Explained

Polypogon is a nearly cosmopolitan genus of plants in the grass family, commonly known beard grass or rabbitsfoot grass.[1] [2] [3]

Description

Polypogon species vary in appearance; some are erect, while others drape over the ground in waves. Many have soft, fluffy inflorescences that look like rabbit's foot amulets.

Some are introduced species established outside their native ranges.[4] Some of those are considered invasive species and noxious weeds, most notably Polypogon monspeliensis, the annual beard grass.

Species[5] [6] [7] [8] [9] [10] [11]
Formerly includedNumerous species now regarded as better suited to other genera: Agrostis, Alopecurus, Brachypodium, Chaetium, Gymnopogon, Muhlenbergia, Pentameris, Reynaudia, and Triniochloa.

Phytoremediation

Polypogon monspeliensis[12] was investigated for its mercury-accumulating properties as a phytoremediation plant. A U.S. NIS—National Institutes of Health-funded study showed the plant to take up 110 times more mercury (HgS) than control plant species. This mercury hyperaccumulator sequesters the toxin in its roots in an insoluble form, reducing exposure to ecological receptors in situ and in erosion sediments.[13]

External links

Notes and References

  1. https://www.biodiversitylibrary.org/page/305625#page/103/mode/1up Desfontaines, René Louiche. 1800. Flora Atlantica 1: 66-67
  2. http://www.tropicos.org/Name/40014239 Tropicos, Polypogon Desf.
  3. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=126432 Flora of China Vol. 22 Page 361 棒头草属 bang tou cao shu Polypogon Desfontaines, Fl. Atlant. 1: 66. 1798.
  4. http://plants.usda.gov/java/profile?symbol=POLYP2 USDA
  5. http://www.theplantlist.org/tpl1.1/search?q=Polypogon The Plant List search for Polypogon
  6. http://luirig.altervista.org/flora/taxa/floraspecie.php?genere=polypogon Altervista Flora Italiana, genere Polypogon
  7. Finot Saldías, V. L., L. Contreras, W. Ulloa, A. E. Marticorena, C. M. Baeza & E. Ruiz. 2013. El género Polypogon (Poaceae: Agrostidinae) en Chile. Journal of the Botanical Research Institute of Texas 7(1): 169–194
  8. Cabi, E. & M. Doğan. 2012. Poaceae. 690–756. In A. Güner, S. Aslan, T. Ekim, M. Vural & M. T. Babaç (eds.) Türkiye Bitkileri Listesi. Nezahat Gökyiğit Botanik Bahçesi ve Flora Araştırmaları Derneği Yayını, Istanbul
  9. Idárraga-Piedrahita, A., R. D. C. Ortiz, R. Callejas Posada & M. Merello. (eds.) 2011. Flora de Antioquia: Catálogo de las Plantas Vasculares 2: 9–939. Universidad de Antioquia, Medellín
  10. http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:apni.taxon:382854#tab_classification Atlas of Living Australia, Polypogon Desf. Beard Grasses
  11. http://bonap.net/NAPA/TaxonMaps/Genus/County/Polypogon Biota of North America Program 2013 county distribution maps
  12. Plodinec, J. (2003). Instrumentation Development, Measurement and Performance Evaluation of Environmental Technologies. Quarterly Technical Progress Report No. 40395R20. Diagnostic Instrumentation and Analysis Laboratory. Mississippi State University. Starkville, MS.
  13. http://www.boeing.com/aboutus/environment/santa_susana/water_quality/isra_110831_ExpPanel_Public_Mtg_FINAL_082511_34-57.pdf Expert Panel Report; Boeing SSFL site; pg. 20

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