Ambrosia artemisiifolia

Photo of Ragweed
Photo by Dr. John Meade, weed scientist emeritus
Rutgers Cooperative Extension

This is the worst offender for those people allergic to pollen. This plant releases copious amounts of pollen which has a high rating for causing "hayfever." By the time of pollen release, it looks very ratty.

Additional Images

  1. Rutgers
  2. Executive Dean of Agriculture and Natural Resources
  3. School of Environmental and Biological Sciences