| Iva | |
|---|---|
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| |
| 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]
- 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
- ^ lectotype designated by N. L. Britton et A. Brown, Ill. Fl. N. U. S. ed. 2. 3: 338 (1913)
- ^ a b Tropicos, Iva L.
- ^ Linnaeus, Carl von. 1753. Species Plantarum 2: 988-989 in Latin
- ^ USDA, NRCS (n.d.). "Iva". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 3 August 2016.
- ^ Flora of North America, Vol. 21 Page 25 Marsh elder Iva Linnaeus, Sp. Pl. 2: 988. 1753; Gen. Pl. ed. 5, 426. 1754.
- ^ The Plant List search for Iva
- ^ Biota of North America Program 2013 county distribution maps
- ^ Turner, Billie Lee. 2009. Iva corbinii (Asteraceae), a remarkable new species from Travis County, Texas. Lundellia 12:5-7 includes color photo of type specimen and another of the plant in the field
- ^ Tropicos, Iva dealbata A. Gray
- ^ Tropicos, Iva imbricata