Dactylis glomerata

Dactylis glomerata_Orchardgrass_ JM Di Tomaso
Photo: Joseph DiTomaso

Common names: orchard grass

Dactylis glomerata (orchardgrass) is an aggressive perennial grass (family Poaceae) widespread throughout California. It grows in any type of soil, is drought resistant, and can overrun-some grasslands. Orchardgrass is a desirable pasture grass but has escaped cultivation in many natural areas throughout the United States.

Cal-IPC Rating: Limited?

CDFA Rating: None?


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 Dactylis glomerata Information

  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - Distribution map and records of this species in California.
  • CalWeedMapper - Distribution map of this species in California with ability to determine regional priorities.
  • EDDMapS - Distribution of this species in North America.
  • Jepson Interchange - Information on this plant's taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Information on identification and distribution, with links to websites in individual states.
  • Additional photos

    Dactylis glomerata_leaf blade and sheath_ZoyaAkulova
    Dactylis glomerata (orchard grass) leaf blade and sheath. Photo: Zoya Akulova
    Dactylis glomerata_inflorescence_ZoyaAkulova
    Dactylis glomerata (orchard grass) inflorescence. Photo: Zoya Akulova
    Dactylis glomerata_growth habit_BarryBreckling
    Dactylis glomerata (orchard grass) growth habit. Photo: Barry Breckling