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Pest Information

Annual Pricklypoppy

Annual Pricklypoppy

  • Latin Name: Argemone Polyanthemos
  • Common Name: Annual Pricklypoppy
  • Other Names: Prickly poppy

Pest Details

Annual Pricklypoppy

Origin:

Native to the Rocky Mountain region, and found widely in the western United States, particularly on over-grazed lands. It also occurs on waste areas and along roadsides.

Biology:

An annual weed that is covered with sharp, stout spines that make it unpalatable for grazing. The entire plant contains a yellow sap, and some people suffer skin irritation from contact with the spines.

Identification:

Mature plants grow to 3 feet tall, with a one or more stems and sparse branching at their upper length. Leaves form alternate along the stem, and are up to 10 inches long, grayish-green, deeply lobed, and spiny along all the margins as well as the mid-rib. Flowers are large and showy, up to 3 inches across, white with a distinct yellow center of stamens, and occur in clusters of 3 to 6 at the ends of erect stems at the top of the plant.

Characteristicts Important to Control:

An annual weed of minor importance.

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