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Oahu sedge

Scientific Name: Carex wahuensis ssp. rubiginosa

Family: Cyperaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names:

       

Carex wahuensis - Oahu Sedge

Carex wahuensis, commonly known as Oahu sedge, is a perennial graminoid plant native to Hawaii. It's recognized for its tough nature and potential for use as an accent plant, both sparingly and en masse.

Considerations for Pets

  • As a sedge, Carex wahuensis is grass-like.

Considerations for Children

  • As a sedge, Carex wahuensis is grass-like.

Taxonomy and Nomenclature

  • Scientific Name: Carex wahuensis C.A. Mey.
  • Common Name: Oahu sedge
  • Family: Cyperaceae (Sedge family)
  • Kingdom: Plantae
  • Taxonomic Rank: Species
  • Synonyms/Alternative Names:
    • Carex oahuensis var. robusta

Distribution and Habitat

  • Native to Hawaii (HI).
  • Also found in Puerto Rico (PR), Virgin Islands (VI), Navassa Island (NAV).
  • Potentially found in Canada (CAN), Greenland (GL), and Saint Pierre and Michelon.
  • Specifically found on Oahu, Molokai, Maui, the Big Island and Laysan in the northwestern part of the Hawaiian Islands
  • First found naturalized on Oahu in Upper Kalihi Valley.

Morphological Characteristics and Growth Habits

  • Growth Habit: Graminoid.
  • Duration: Perennial.
  • Grows to more than 2 ft wide by 2.5 ft tall clumps.
  • Medium in size and can reach 4 m high.
  • Color: Green (spring, summer, autumn, winter).

Ecological Role

  • Presented as a non-invasive alternative to non-native plants like "Umbrella".

Additional Information

  • Symbol: CAWAR2

Further Information

  • Discover Life: Provides information on the biology, natural history, ecology, identification, and distribution of Carex wahuensis.
  • Starr Environmental: Source of images and information from Forest and Kim Starr.
  • Wikimedia Commons: Contains media related to Carex wahuensis.