Silver Burweed

Ambrosia chamissonis

Range: The coastline of western North America from Alaska to Baja California.

Description: Perennial herb forming large clumps.  Long, creeping rhizomes; stems leafy, spreading-hairy, stout, branched just below the surface, forming large, lax clumps 20-160 cm tall.  Somewhat succulent leaves, toothed to deeply divided and crinkly edged, with fine whitish or silvery hairs.

Ecology: Moist to mesic coastal sandy or gravelly upper beaches and shorelines in the lowland zone


  • Eflora
  • Pojar, J. and A. MacKinnon.   Plants of coastal British Columbia: including Washington, Oregon & Alaska. Lone Pine Publishing. Vancouver. 528 p.

Learn about the importance and diversity of our wetlands

Wetlandkeepers is a 2½ day introduction to wetland identification and stewardship. The course offers individuals an opportunity for hands-on practice of wetland conservation skills, such as conducting wetland, plant and bird surveys, wetland mapping and raising public awareness. It is a fun, and often muddy weekend, for all ages. Participants that successfully complete the course are awarded a Wetlandkeepers Certificate.

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