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Pest Information

Swamp Pricklegrass

Swamp Pricklegrass

  • Latin Name: Crypsis Schoenoides
  • Common Name: Swamp Pricklegrass
  • Other Names: False timothy, swamp timothy, swampgrass

Pest Details

Swamp Pricklegrass
Swamp Pricklegrass
Swamp Pricklegrass
Swamp Pricklegrass

Origin:

Native to Eurasia and Africa, but now occurring in the western U.S. from Arizona to Idaho and along the Pacific Coast.

Biology:

An annual grass that reproduces from seeds. Found in areas where soil remains wet much of the year, as along margins of water courses or ponds, swamps, meadows, etc. Used as a forage grass for livestock.

Identification:

A distinctive grass that forms matlike plants with decumbent stems that grow parallel to the soil, and then turn sharply upward to produce the flower stalks. A number of stems arise from the base of the plant, growing to less than 1 foot in length. The base of the leaf hugs the stem, and leaves are flattened and slightly hairy. The flower heads also are very distinctive, with a dense growth of florets from 1 to 3 inches long. The stamens extend from each flower to give the overall soft look to the flower head.

Characteristicts Important to Control:

Not a particular problem, given its normal habitats in wetlands. If control is needed it may be tilled prior to seed maturation, or a contact or systemic herbicide will be effective. Due to the prostrate habit mowing may not be effective.

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