Iva annua L. - Annual Marshelder, Sumpweed
Family - Asteraceae
Flowering - June - November.
Habitat - Alluvial ground, roadsides, railroads, ditches.
Origin - Native to North America.
Other information - This weedy species can be found throughout Alabama and is probably forund in every county. The plant can be identified by its opposite, petiolate, triangular-ovate leaves, its pubescent stems, and its long inflorescences. The bracts of the inflorescence are attenuate. The plant grows in moist to wet soils.
Photographs taken off Macon County Rd 43, Macon County, AL., 10-9-04.