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Pest Information

California Wild Rose

California Wild Rose

  • Latin Name: Rosa Californica
  • Common Name: California Wild Rose
  • Other Names: N/A

Pest Details

California Wild Rose
California Wild Rose
California Wild Rose
California Wild Rose

Origin:

Native to the western United States, and just one of several dozen species of wild roses in North America.

Biology:

A perennial shrub common in moist areas. Reproduction is from seeds, but plants spread by rhizomes as well, forming dense thickets many feet in diameter and over 5 feet in height. Stems are armed with spines that make physical removal that much more difficult.

Identification:

Numerous branches grow erect to sprawling and intertwining as the plant matures. Leaves are about 5 inches long and are divided into 3 pairs of opposing leaflets and a terminal leaflet. Leaflets are slightly hairy and have serrated margins. At the base of the leaf stalk may be a pair of recurved thorns. Flowers are white to pink and about 1.5 inches in diameter. The petals fall to reveal the large reddish orange seed pod.

Characteristicts Important to Control:

Physical removal will be difficult due to the potential new growth from roots. A systemic herbicide used in summer to fall will be effective.

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