Chaetacalia

{{Short description|Genus of flowering plants}}

{{Speciesbox

|genus = Chaetacalia

|parent_authority = Pruski

|display_parents = 3

|species = stylotricha

|authority = (Cabrera) Pruski

|synonyms =

• Lasiocephalus stylotrichus {{small|(Cabrera) Cuatrec.}}
• Senecio stylotrichus {{small|Cabrera}}

|synonyms_ref = {{cite web |title=Chaetacalia stylotricha (Cabrera) Pruski |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77297419-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=24 June 2025}}

}}

Chaetacalia is a genus of flowering plants in the family Asteraceae. It includes a single species, Chaetacalia stylotricha, an herbaceous perennial endemic to Santa Cruz Department of Bolivia.

The species was first described as Senecio stylotrichus by Ángel Lulio Cabrera in 1950. In 2021 John Francis Pruski placed the species in the new monotypic genus Chaetacalia as Chaetacalia stylotricha.Pruski, J.F. Studies of Neotropical Compositae–XV. The new genus Chaetacalia, retention of Aetheolaena, Culcitium, Haplosticha, and Iocenes, two new species of Senecio, and Lasiocephalus revisited again (Senecioneae: Senecioninae). Phytoneuron 2021-65: 1–83. Published 22 December 2021. ISSN 2153 733X