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Oahu flatsedge

Scientific Name: Cyperus hypochlorus var. ?kauaiensis

Family: Cyperaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names:

       

Oahu Flatsedge (Cyperus hypochlorus)

Learn about the Oahu Flatsedge, a plant with intriguing characteristics and a significant presence in specific regions. This page provides comprehensive information about its taxonomy, distribution, and ecological role.

Considerations for Pets

  • The text mentions several "flatsedges," including the "sticky flatsedge," suggesting the presence of sap or other substances might be a characteristic of this genus.

Taxonomy and Nomenclature

  • Scientific Name: Cyperus hypochlorus Hbd.
  • Common Name: Oahu Flatsedge
  • Family: Cyperaceae (Sedge Family)
  • Group: Monocot
  • Synonyms/Related Names: The accepted ITIS name is Cyperus hypochlorus Hbd. (TSN 39982). Other varieties include Cyperus hypochlorus var. brevior.

Distribution and Habitat

  • Native Status: Native to Hawaii (HI). Also found in Canada (CAN), mainland United States (L48), North Atlantic Region (NAV), Pacific Basin (PB), Puerto Rico (PR), and Virgin Islands (VI).
  • Specifically found in locations such as Makawao Forest Reserve, Maui; and Mokolii, Oahu, Hawaii.
  • Also noted as indigenous to all Hawaiian islands except Lana'i and Kaho'olawe.

Morphological Characteristics and Growth Habits

  • Growth Habit: Graminoid, Perennial

Ecological Role

  • The Oahu Flatsedge is a species of sedge, and information on Discover Life's page covers its biology, natural history, and ecology.
  • It grows in wetlands in Oahu, Hawaii.

Quirky Facts

  • One reference mentions "Hawaiian Mat Making Flatsedge," hinting at a possible historical use of this or a related species for crafting mats.
  • One reference to *Cyperus trachysanthos* a similar species, mentions it is also known as "sticky flatsedge."

Further Information

  • Discover Life: Provides information on the biology, natural history, ecology, identification, and distribution of Cyperus hypochlorus.
  • USDA Plants Database: Contains information, including the symbol key (CYHYB) for Cyperus hypochlorus var. brevior.