INVASIVE WEEDS of HUMBOLDT COUNTY a guide for concerned citizens Invasive weeds - why the worry?          What exactly is an invasive weed? What you can do to help. Photo line-up of unwanted species The "A list": our most harmful weeds Scotch broom (and other brooms) pampas grass gorse Himalaya berry English ivy Cape ivy (German ivy) European beachgrass iceplant yellow bush lupine yellow star thistle spotted and diffuse knapweed bull thistle and Canada thistle common reed Spanish heath Chilean cordgrass The "B list": also of concern cotoneaster pittosporum English holly butterfly bush poison hemlock foxglove parrot's feather fennel teasel Klamath weed periwinkle pennyroyal purple loosestrife evening primrose birdsfoot trefoil

prepared for "Invasive Weed Awareness Week," Aug. 19-26, 2000 SPONSORS: U.S. Fish and Wildlife Service • Bureau of Land Management California Native Plant Society • Redwood National Park California Conservation Corps • U.S. Forest Service Friends of the Dunes • County of Humboldt • City of Arcata • YouthServe AmeriCorps • City of Eureka • U.C. Cooperative Extension • Humboldt State University Museum of Natural History • Friends of Arcata Marsh • California Department of Transportation • California Department of Food and Agriculture • Manila Community Services District • California Department of Parks and Recreation • Natural Resource Conservation Service • Humboldt-Del Norte Cattlemen’s Association • Humboldt & Del Norte County Dunes Weed Management Area • Humboldt County Weed Management Area • Northcoast Environmental Center BROCHURE: Cover art by Margaret McGee • Brochure production: Andrea Pickart and Annie Eicher • Photography and drawings: A. Pickart; J. Ordano (with permission from Calflora); Northwest Weeds, Ronald J. Taylor, 1990, Mountain Press Publishing Company, Missoula, MT; Tina Ayers; U.S. Bureau of Land Management • Printed by Bug Press, Arcata, August 2000 • Web version: Larry Levine

INVASIVE WEEDS of HUMBOLDT COUNTY    hosted by the North Coast Chapter of the California Native Plant Society   HOME

Last modified  07/09/01 03:00 EDT