Coarse, weedy plant, 1 to 8 feet tall. Flower heads
noticeably swollen at the base, greenish, with tiny white
flowers barely protruding. Fruits are like thistle-down.
Leaves are long and irregularly toothed. Blooms in late
summer or fall.
Native, but a weedy plant of disturbed areas. Often
grows in recently burned places, hence its common name. In
Wildwood it can be found along the bikeway.
A fairly distinctive plant. The swollen base of the
flowerhead is a good identifying character. Could be
confused with wild lettuce species, but they have tiny
dandelion-like flowers, and lack the swollen base. Horseweed (Conyza canadensis) has somewhat similar flowerheads, but they ar smaller and have clearly protruding white rays; the leaves are also much less toothed.