Common Ragweed is a pioneer species in North Florida. It is often found in disturbed habitats such as roadsides and agricultural fields and is notorious for its allergenic pollen. The species name Artemisiifolia is given because the leaves are thought to resemble those of true wormwoods.

This plant, a prolific seed producer, can rapidly spread if unmanaged, posing health hazards and significant agricultural nuisances. Its rapid growth and invasive nature make it a potential noxious weed, a concern for both residents and farmers. Its many branches can grow up to 2.3 ft in height, with pinnately divided soft and hairy leaves that can reach up to 5 inches long.

Source: Wikipedia