Iva microcephala, the piedmont marsh elder, is a North American species of flowering plants in the daisy family. It grows in the southeastern United States in Alabama, Florida, Georgia, and the Carolinas.
Iva microcephala is a wind-pollinated annual herb sometimes as much as 100 cm (40 inches) in height. Leaves are very narrow, sometimes thread-like, up to 6 cm (2.4 inches) long. Flower heads are small, clustered in elongated arrays at the tips of branches, each head containing only about 5-8 flowers.
- "Iva microcephala". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 7 August 2015.
- Biota of North America Program 2014 county distribution map
- Flora of North America, Iva microcephala Nuttall 1840
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