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ricefield flatsedge

Scientific Name: Cyperus iria

Family: Cyperaceae

Category: Monocot

Growth: Graminoid

Duration: Annual

Other Names:

       

Ricefield Flatsedge (Cyperus iria)

Common Names

  • Rice flat sedge
  • Grasshopper's cyperus
  • Umbrella sedge

Taxonomy and Nomenclature

  • Scientific Name: Cyperus iria L.
  • Family: Cyperaceae (Sedge family)
  • Synonyms: The provided text identifies "ricefield flatsedge" as a synonym.

Distribution and Habitat

  • Native to Asia.
  • Introduced to North America in the 1840s.
  • Found worldwide in warm, moist regions, often in disturbed sites.
  • Reported as invasive in specific locations, such as New Jersey (NJ).

Ecological Role

  • Considered one of the world's worst weeds.
  • An aggressive weed in disturbed sites.

Morphological Characteristics

  • Smooth, tufted sedge.
  • Roots are yellowish-red and fibrous.

Interactions with Other Organisms

  • Considered a major sedge pest in rice fields.

Resources and Further Information

  • USDA PLANTS Database
  • Discover Life
  • Philippine Herbal Medicine - An illustrated compilation by Godofredo Umali Stuart