Common Name: Ironweed, Tall Ironweed. Scientific Name: Vernonia gigantea. Synonym: Vernonia altissima. Family: Asteraceae. Genus: Vernonia. Plant type: Perennials. Height: 6-8 ft. (1.8-2.4 m). Flower color: Purple. Flowering time: Mid Summer.
Description: Tall ironweed (Vernonia gigantea or Vernonia altissima) is flowering plant in the asteraceae family. The flowers are purple, Large, loose, spreading, flat-topped, saucer-shaped clusters of flowers form at the ends of branches. The erect stems grow between 6 to 10 feet tall. The leaves are alternate, lance-shaped, toothed along the edge. It is native to North America.