Hairy galinsoga is a widespread weed that is easily overlooked, with small flowers and few
distinctive features, unless you are a farmer and it is ruining your crop yields. These inconspicuous
weeds can reduce crop yields by 50%. They are believed to have
originated in Mexico.
Identification: Plants are 4-31" (10-80 cm) high, often
branched; stems are covered with short hairs. Leaves are opposite, medium to dark green, and up to 2" (6 cm) ×
1½" (4 cm). They are broadest at the base, tapering to a tip, sparsely to densely hairy, and coarsely toothed.
Flowers are ¼-⅜" (6.3-10 mm) in diameter, with 4 or 5
petals, each with three teeth; and a central yellow disk. Fruits are small achenes with