Hairy Galinsoga—Galinsoga ciliata
Also known as Quickweed
A summer annual spread mainly by seeds, hairy galinsoga is a weed of vegetable and nursery crops. It can be introduced with transplants or seedlings.
A many branched plant which spreads quickly and shades and crowds out other plants. The stems are erect and covered with small hairs. The roots are shallow, making them easy to pull.
Leaves are opposite, oval to triangaluar and coarsely toothed. They are covered with hairs on the upper surface.
Many small flowers, each about ¼ inch across, are produced on each plant. They consist of 4 to 5 white, 3-toothed outer flowers and many yellow inner flowers. Flower from June until late autumn.
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Identification and Control Information
- Identification Notes: Hairy Galinsoga, Quickweed—UMass Extension
- Galinsoga Management—University of Vermont Cooperative Extension
- Hairy Galinsoga—Ontario Ministry of Agriculture, Food and Rural Affairs
More Information
- Weeds and Your Garden brochure (PDF) —New York State IPM Program and Cornell Cooperative Extension
- Weed Management in the Home Garden (PDF) —Iowa State University Extension
[Photos, left to right:Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org; Joseph M. DiTomaso, University of California - Davis, Bugwood.org; Joseph M. DiTomaso, University of California - Davis, Bugwood.org]