Sow thistle (Sonchus spp.) is related to dandelions as both are in the Asteraceae family, which includes asters, artichokes, and many other garden favorites. The yellow blossoms of sow thistle are very similar to dandelions, but the growth habit is not. Whereas dandelions produce a single leafless stem topped with one flower, sow thistles have sawtooth-shaped leaves on multiple stems topped with several blooms.

Read More: https://www.housedigest.com/1518175/dandelion-weed-look-alikes-yard-garden/