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Common Crupina


Crupina Vulgaris - Asteraceae Family - Annual

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  • Flowers: 1-5 per heads per branch. Flower heads are narrow, cylindrical, and pink or purple in color.
  • Seeds:  Seeds are oblong with a ring of sharp bristles surrounding the broad end of the seed.
  • Leaves: Leaves alternate and are directly attached to the stems. They are deeply lobed and dissected with margins containing short spines.
  • Flowering Time:  Common Crupina flowers in June and July.
  • Life cycle: Common Crupina is an annual forb that flowers and produces seeds during June and July. During the summer, it can grow up to 3 feet tall before dying back in the fall and winter.


  • Common Crupina readily invades areas of disturbed soil, easily displacing slower-growing native species.
  • While not toxic to livestock, the leaves and stems of Common Crupina are covered in small spiny hairs that make it unpalatable to grazing animals.
  • Common Crupina often invades hay and grass seed fields, decreasing the yield and value of the crop.


Most effective control methods

  • Mechanical control methods are very effective on small scale infestations and in sensitive areas such as home sites and near waterways. For best results, pull plants prior to spring flowering with continued attention throughout the growing season to prevent further spread.
  • Biological control such as grazing is not recommended due to Common Crupina’s unpalatable nature. There are currently no traditional biocontrol agents approved for use in the US.
  • Chemical control is effective against Common Crupina, primarily in its pre-flowering stage. For best control, herbicides such as 2,4-D Dicamba have been suggested by the USDA to effectively control Common Crupina.

Large Images



Common crupina: flower


Utah State University ,

Common crupina: seedling



Common crupina: seed


USDA APHIS PPQ - Oxford, North Carolina , USDA APHIS PPQ,

Common crupina: infestation


Joseph M. DiTomaso, University of California - Davis,

Common crupina: flowers



USDA APHIS PPQ - Oxford, North Carolina , USDA APHIS PPQ,

Common crupina: infestation


Steve Dewey, Utah State University,

Common crupina: seeds




  • Common Crupina Fact Sheet

  • References

    DiTomaso, J.M., G.B. Kyser et al. (2013). Weed Control in Natural Areas in the Western United States [PDF file]. Weed Research and Information Center, University of California. Retrieved from View PDF

    Invasive Species Compendium. (2017, November 22). Crupina vulgaris (bearded creeper). Retrieved from

    Graham, J. & Johnson, W. Managing common crupina [PDF file]. Retrieved from View PDF

    Washington State University. (2011, September). Common crupina. Retrieved from View PDF