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Long's sedge

Scientific Name: Carex longii

Family: Cyperaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names: OH (Long's sedge)

       

Long's Sedge (Carex longii)

Long's sedge is a perennial grass found in wet environments. Here's what you need to know about it:

Considerations for Pets

  • Long's Sedge is a clumping perennial grass.

Scientific Classification and Nomenclature

  • Scientific Name: Carex longii Mack.
  • Common Names: Long's sedge, Long-stalked Yellow-sedge (historical name), Greenish-white Sedge
  • Family: Cyperaceae (Sedge Family)
  • Synonyms: USDA Symbol: CALO5
  • Former Scientific Name: Carex lepidocarpa

Distribution and Habitat

  • Native to North America but introduced in Hawaii.
  • Found in wet or seasonally wet soils such as fields, pond shores, ditches, swamp edges, mud flats, and salt marshes.
  • Distribution includes Nova Scotia (NS) and Ontario (ON).

Ecological Role

  • Listed in "Invasive Species Most Unwanted," suggesting it may be considered invasive in certain regions.
  • An invasive species is defined as any species of insects, animals, plants, and pathogens, including its seeds, eggs, spores, or other biological material capable of propagating.

Morphological Characteristics

  • A clumping perennial grass that can grow up to 48 inches tall.
  • Vegetative stems produce a small number of leaves clustered near the base.
  • Pendulous Sedge has long, yellowish-green leaves and arching stems that carry the yellow, catkin-like flower spikes that can be up to 2.5cm long.
  • Flowering occurs from July to September.

Interactions with Other Organisms

  • Trout may feed on caddisflies, sometimes called Long-Horned Sedges.

Resources

  • USDA PLANTS Database: Symbol CALO5
  • Images available from the USDA Agricultural Research Service.