| Iva | |
|---|---|
 | |
| Iva annua | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Heliantheae |
| Subtribe: | Ambrosiinae |
| Genus: | Iva L. 1753 not Fabr. 1759 (Lamiaceae) |
| Type species | |
| Iva annua | |
Iva is a genus of wind-pollinated plants in the family Asteraceae, described as a genus by Linnaeus in 1753. [2] [3] Plants of this genus are known generally as marsh elders. [4] The genus is native to North America. [5]
- Accepted species [6] [7]
- Iva angustifolia - southeastern + south-central United States (Texas Oklahoma Louisiana Arkansas Kansas Florida)
- Iva annua - United States, primarily south-central region; Tamaulipas
- Iva asperifolia - south-central United States (Texas Oklahoma Louisiana Arkansas Kansas Indiana), Veracruz
- Iva axillaris - western United States + Canada
- Iva cheiranthifolia - Cuba
- Iva corbinii B.L. Turner - Texas [8]
- Iva dealbata - United States (Texas New Mexico), Mexico (Chihuahua, Coahuila, Nuevo León, San Luis Potosí) [9]
- Iva frutescens - coastal areas from Texas to Nova Scotia
- Iva hayesiana - California, Baja California
- Iva imbricata - coastal areas from Texas to Virginia; Bahamas [10]
- Iva microcephala - southeastern United States (Alabama Florida Georgia North Carolina South Carolina)
- Iva xanthiifolia (synonym Cyclachaena xanthiifolia) - widespread in United States + Canada, introduced elsewhere
