Chromolaena ivifolia called ivy-leaf false thoroughwort, or ivyleaf thoroughwort, is a species of flowering shrub in the family Asteraceae. It is native to North America and South America, from the south-eastern United States (eastern Texas, Louisiana, southern Mississippi, southern Alabama, and Florida) to Argentina.Biota of North America Program 2014 county distribution mapFlora of North America, Ivy-leaf false thoroughwort, Chromolaena ivifolia (Linnaeus) R. M. King & H. RobinsonCorrea A., M.D., C. Galdames & M. Stapf. 2004. Catálogo de las Plantas Vasculares de Panamá 1–599. Smithsonian Tropical Research Institute, Panamá.Hokche, O., P. E. Berry & O. Huber. (eds.) 2008. Nuevo Catálogo de la Flora Vascular de Venezuela 1–859. Fundación Instituto Botánico de Venezuela, CaracasWood, J. R. I., F. Mamani M., P. Pozo, J. D. Soto & D. Villarroel Segarra. (eds.) 2011. Guía Darwin de las plantas de los cerrados de la Chiquitania 1–212. Museo de Historia Natural Noel Kempff Mercado, Santa Cruz.
Chromolaena ivifolia is a perennial herb or subshrub up to 150 cm (5 feet) tall. Flower heads are produced in groups at the ends of branches. The heads contain red, purple, or blue disc florets but no ray florets.
References
External links Photo of herbarium specimen at Missouri Botanical Garden, collected in Minas Gerais, Brazil Southeastern Flora Alabama Plant Atlas Plants of the Eastern Caribbean Instituto de Botánica Darwinion Flora de la República Argentina