Chaptalia nutans is a species of plant in the Asteraceae family native to tropical and subtropical America. It is the most common species of its genus.
Description
Vegetative characteristics Chaptalia nutans is a perennial, rhizomatous,Instituto de Botánica Darwinion. (n.d.). Chaptalia nutans. Flora Argentina. Retrieved March 9, 2025, from https://buscador.floraargentina.edu.ar/species/details/16348 terrestrial herbChaptalia in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Disponível em: <https://floradobrasil.jbrj.gov.br/FB5274>. Acesso em: 12 Apr. 2024 with a short rhizome and adventitious, short primary roots and fibrous lateral roots. The small stem produces sessile, hairy,Bruck de Souza, L., Leitão Gindri, A., de Andrade Fortes, T., Felli Kubiça, T., Enderle, J., Roehrs, R., ... & Gasparotto Denardin, E. L. (2020). "Phytochemical analysis, antioxidant activity, antimicrobial activity, and cytotoxicity of Chaptalia nutans leaves." Advances in Pharmacological and Pharmaceutical Sciences, 2020. 5–20(–32) cm long, and 2.5–6 cm wide leaves. Generative characteristics The peduncles 10–60 cm long. The nodding capitulum has 150-320 florets.BURKART, A. (1944). Estudio del género de Compuestas Chaptalia con especial referencia a las especies argentinas. Darwiniana, 6(4), 505–594. http://www.jstor.org/stable/23211616 The achenes are 9–20 mm long. The cream-coloured pappus is 10–12 mm long. Cytology The diploid chromosome count is 2n = 48.
Reproduction In Brazil, flowering and fruiting occurs in October to January, when the dry season is coming to an end.
Habitat It occurs in warm and humid habitats in shade, and may also be found in habitats experiencing seasonal droughts.
Taxonomy It was first published as Tussilago nutans by Carl Linnaeus in 1759. It was transferred to the genus Chaptalia as Chaptalia nutans by Hellmuth Polakowski (1847–1917) in 1878.Polakowski, Hellmuth | International Plant Names Index. (n.d.). Retrieved April 12, 2024, from https://www.ipni.org/a/7803-1 Etymology The specific epithet nutans means "nodding".Lysimachia nutans | CasaBio. (n.d.). Retrieved April 12, 2024, from https://casabio.org/taxa/lysimachia-nutansJackson, W. P. U. (1971). "Meanings and origins of our plant names." Veld & Flora, 57(1), 38. It refers to the nodding inflorescences.
Use Folk medicine It has applications in folk medicine.Empinotti, C. B., & do RDuarte, M. (2007). "Caracteres anatômicos de arnica-do-campo: Chaptalia nutans." Acta Farmacéutica Bonaerense, 25(3), 333. Cultivation It is easy to grow.Baldwin, J. T., & Speese, B. M. (1947). Chaptalia nutans and C. integrifolia: Their Chromosomes. Bulletin of the Torrey Botanical Club, 74(4), 283–286. https://doi.org/10.2307/2482362
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