Ruppia maritima widgeon grass

Ruppia maritima widgeon grass photo.jpg

Ruppia maritima widgeon grass

Kingdom: PLANTAE
Division: ANTHOPHYTA
Class: MONOCOTYLEDONEAE
Order: HELOBIAE
Family: POTAMOGETONACEAE
Genus: Ruppia
Species: maritima

PHYSICAL DESCRIPTION*

  • Thread- like leaves with a pointed tip
  • Leaves are alternate, less than 1 mm wide and less than 20 cm long
  • Leaf tips vary from obtuse and serrate to acute and entire
  • Leaves grow from a branched stem
  • In extreme environments, the plant behaves as an annual
  • In more stable habitats, the plant behaves as a perennial
HABITAT*
  • Grows in brackish to freshwater (wide tolerance) habitats
  • Typically grows in water up to 2 m deep
  • Grows in all substrate types
DISTRIBUTION*
  • Seagrasses of the Ruppia genus occur on all continents of the world and on many islands: the northern limit is about 69 degrees North, the southern limit is at least 55 degrees South.
*Information source: Kantrud HA. 1991. Wigeon grass (Ruppia maritima L.): A literature review. U. S. Fish and Wildlife Service, Fish and Wildlife Research 10. Jamestown, ND: Northern Prairie Wildlife Research Center Home Page.
www.npwrc.usgs.gov/resource/literatr/ruppia/ruppia.htm


Image Credit: Ronald C. Phillips



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