| Marsh elders | |
|---|---|
| Iva annua | |
| Scientific classification | |
| Kingdom: | Plantae | 
| (unranked): | Angiosperms | 
| (unranked): | Eudicots | 
| (unranked): | Asterids | 
| Order: | Asterales | 
| Family: | Asteraceae | 
| Tribe: | Heliantheae | 
| Genus: | 
Iva L. 1753 not Fabr. 1759 (Lamiaceae)  | 
| Type species | |
| 
Iva annua L. | 
|
Iva is a genus of wind-pollinated plants in the daisy family, described as a genus by Linnaeus in 1753. Plants of this genus are known generally as marsh elders. The genus is native to North America.