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Pest Information

Horse Purslane

Horse Purslane

  • Latin Name: Trianthema Portulacastrum
  • Common Name: Horse Purslane
  • Other Names: Desert horsepurslane, desert purslane. Also called the Fig-Marigold Family.

Pest Details

Horse Purslane
Horse Purslane

Origin:

Native to the United States, where it is found throughout the southern half as well as in Hawaii and the Caribbean.

Biology:

An annual, prostrate weed that strongly resembles purslanes in the purslane family. Plants are particularly suited to saline soils, but will be found in crop settings and empty fields. Reproduction is from seeds

Identification:

Plants grow flat on the soil, except in dense growth where they may grow more erect. Mature plants can spread outward from the central root to a diameter of 4 feet. Stems may turn reddish in color. Leaves are large and round, opposite along the stems and on short stalks that are widened at their base. Leaves are fleshy and thick. Flowers occur singly from the leaf axils, opening in early morning and closing in the afternoon.

Characteristicts Important to Control:

Physical removal of individual plants is simple with their shallow root system. Tilling the soil will kill existing plants, and a pre-emergent herbicide will be effective in preventing new growth.

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