Source: California Invasive Plant Council

URL of this page:

Bay Area Early Detection Network


[The BAEDN website was damaged by hackers.
An archived 2009 version of the website is available here.]

The Bay Area Early Detection Network (BAEDN) is a collaborative partnership of regional land managers, invasive species experts, and concerned citizens in the nine-county San Francisco Bay Area. BAEDN selects regional priority species for eradication, including some naturalized non-native plant species that have not yet become invasive but that are deemed to be a future risk.

BAEDN has become a project of Cal-IPC, joining with other regional partnerships across the state working with Cal-IPC to prioritize eradication targets. Cal-IPC is supporting continued work on Bay Area populations that have been selected for eradication.

For more information on BAEDN, contact

Report invasive plant populations using the weed observation form on Calflora.

BAEDN and Friends of Five Creeks remove invasive sea lavender at the Albany marsh.
Photo by Elizabeth Brusati

Steering Committee

The BAEDN Steering Committee is a regional coordinating body for the 8 county Bay Area region.  Members participate by representing their WMA and helping to set the direction and procure funding for strategic regional invasive plant efforts. 

  • Andrea Williams, Marin Municipal Water District (Chair)
  • Peter Brastow, City of SF Biodiversity Coordinator
  • Ed Duarte, Alameda County Department of Agriculture
  • Katherine Holmes, San Mateo County Department of Agriculture
  • Meg Marriott, U.S. Fish and Wildlife Service
  • Peggy Olofson, Invasive Spartina Project
  • Cindy Roessler, Midpeninsula Regional Open Space District

BAEDN information

Important info for the Bay

  • Invasive sea lavender (Limonium ramosissimum) article: Go to Bay Nature
  • Invasive sea lavender (Limonium ramosissimum) handout
  • Invasive kelp (Undaria) project at Smithsonian Environmental Research Center: Go to SERC
  • Cal-IPC Plant Profile for sea lavender: Go to page
  • Cal-IPC Plant Profile for Undaria: Go to page