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Pest Information

Horned Rush

Horned Rush

  • Latin Name: Rhynchospora Spp.
  • Common Name: Horned Rush
  • Other Names: Beak rush, beak rush sedge

Pest Details

Horned Rush
Horned Rush


There are over 200 species in this genus in the world, with several dozen varieties in the United States.


Very similar in appearance to true rush plants, these are actually sedges. Most species are perennial plants that reproduce from seeds, but spread also by rhizomes. Many species are a valuable food source for water fowl.


With the many species in the U.S. there is great variability in the appearance. In general the stems are triangular and the leaves are flattened, and plants often form large clumps as they propagate by rhizomes. The flowering heads occur as clusters along the stems or at the ends of stems, as small clusters of brown flower heads or single flowers without stalks. On some species there is an elongated, pointed “beak” at the tip of the spikelet, giving them their common name.

Characteristicts Important to Control:

Control of excessive moisture in turf will help to discourage the growth of most sedges, including the various Kyllinga species. For sedges that reproduce only from seeds control with pre-emergent herbicides can be effective. Post-emergence control in turf will require a selective herbicide which targets the sedges specifically. In non-turf settings a systemic, non-selective herbicide will be effective.

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