Poa pratensis

Poa pratensis_Kentucky bluegrass_JM DiTomaso
Photo courtesy Joseph DiTomaso

Synonyms: Paneion pratense (L.) Lunell., several subspecies

Common names: Kentucky bluegrass; smooth meadowgrass

Poa pratensis (Kentucky bluegrass) is a perennial grass (family Poaceae) that has escaped cultivation and is found sporadically in many different habitats in California. Kentucky bluegrass can produce 200 seeds per panicle in the first year and the species increases with grazing and burning. Kentucky bluegrass out competes with native species, reducing overall diversity and altering species composition.

Cal-IPC Rating: Limited

Cal-IPC Assessment

Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.

Weed Management Notes

  • Management Notes - Information on management techniques and effectiveness from the University of California Cooperative Extension’s Weed Research & Information Center.

Cal-IPC Newsletter Articles

There are no newsletter articles associated with this species yet.

Cal-IPC Symposium Presentations

Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.

Other Poa pratensis Information

  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - See the distribution of this species on Calflora's map of California.
  • CalWeedMapper - Distribution information with ability to determine regional priorities.
  • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.
  • Bugwood - National database from the Center for Invasive Species and Ecosystem Health at the University of Georgia.
  • EDDMapS - North American distribution based on Early Detection and Distribution Mapping System.