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globe sedge

Scientific Name: Carex perglobosa

Family: Cyperaceae

Category: Monocot

Growth: Graminoid

Duration: Perennial

Other Names:

       

Globe Sedge: A Grassy Weed

Globe sedge refers to several plants in the sedge family. It is often considered a weed, particularly in turfgrass and gardens. It can be difficult to control due to its ability to reproduce underground.

Considerations for Pets

  • This plant is often found in lawns and gardens, so keep a close eye on pets that may graze outdoors.
  • Sedges can have sharp edges on their leaves.

Scientific Name and Common Names

  • Scientific Name: Several species are referred to as Globe Sedge. The text mentions:
    • Cyperus croceus
    • Cyperus globulosus
    • Carex grayi (also called Gray's sedge)
    • Carex perglobosa
  • Common Names:
    • Globe Sedge
    • Pinebarren Flatsedge (for Cyperus globulosus)
    • Gray's sedge (for Carex grayi)
    • Roundfruit sedge (for Carex globosa)

Taxonomy and Nomenclature

  • Family: Cyperaceae (Sedge Family)

Distribution and Habitat

  • Prefers moist to dry, sandy habitats.
  • Found in turfgrass and can be a challenge in gardens.
  • Mentioned in the context of Scots pine fen woods of the western boreal region of the Palaearctic.
  • Observed in Little Lake Creek Loop Trail in Sam Houston National Forest, Texas.

Ecological Role

  • Often considered a weed, especially in turf.
  • Can be an aggressive sedge, thriving in dry to moist, extremely sandy soil.

Morphological Characteristics

  • Grass-like plant with aerial flower-bearing stems.
  • Perennial, with densely tufted, flat, smooth, and bright green leaves.
  • Globe sedge has three long, pointed leaves that spring from a triangular stem.
  • Produces clusters of globe-like seeds at the top of the plant.
  • Carex grayi (Gray's sedge) has unique, spherical seed spikes.

Interactions with Other Organisms

  • Affected by herbicides like Bentazon, Certainty, and MSMA used for sedge control.

Resources and Further Information

  • Valdosta State University (Richard Carter's photo).
  • USDA-NRCS PLANTS Database.
  • Discover Life.
  • Dave's Garden.