''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 terrestrial herb''Chaptalia'' in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Disponível em: . Acesso em: 12 Apr. 2024 with a short primary root and fibrous lateral roots. The small stem produces sessile, hairy leaves.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.

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 pappus is cream-coloured.

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

Publication

It was first published as ''Tussilago nutans'' by

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, ...

in 1759. It was transferred to the genus ''Chaptalia'' as ''Chaptalia nutans'' by Hellmuth Polakowski (1847–1917) in 1878.

Etymology

The specific epithet ''nutans'' means "nodding".Jackson, W. P. U. (1971)
"Meanings and origins of our plant names."
Veld & Flora, 57(1), 38. It refers to the nodding inflorescences.

Use

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

References

{{Taxonbar, from=Q13191067 nutans Flora of Southern America Plants described in 1878