Family – Asteraceae
Ray flowers: Absent.
Flowering – August – November.
Habitat – Low ground, alluvial banks, bottoms, fields, marshes, swamp forests.
Origin – Native to North America.
Other information – This tall species can be found throughout most of Alabama. This is a robust species with a loose, spreading inflorescence.
Plants in Alabama are represented by two subspecies, gigantea and ovalifolia.
The genus is named for William Vernon (16? – 1711). Vernon was an English botanist who studied plants in North America.
The species epithet derives from the Greek “giga(n)” meaning “giant” or “very large”.