{{Short description|Genus of flowering plants}} {{Speciesbox |genus = Tonalanthus |parent_authority = Brandegee |display_parents = 3 |species = megacephalus |authority = (B.L.Rob. & Greenm.) Pruski |synonyms = *''Calea megacephala'' {{small|B.L.Rob. & Greenm. (1896)}} (basionym) *''Calea megacephala'' var. ''pachutlana'' {{small|B.L.Turner}} *''Tonalanthus aurantiacus'' {{small|Brandegee}} |synonyms_ref = <ref name = powo>{{cite web |title=''Tonalanthus megacephalus'' (B.L.Rob. & Greenm.) Pruski |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77336007-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=27 June 2025}}</ref> }}
'''''Tonalanthus''''' is a genus of flowering plants in the family Asteraceae. It contains a single species, '''''Tonalanthus megacephalus''''', a perennial native to Chiapas and Oaxaca in southern Mexico.<ref name = powo/><ref name = Pruski>Pruski, J.F. 2023. The new genera ''Laceanthos, Podocalea, Tepuipappus,'' the resurrected genera ''Lemmatium, Meyeria, Tonalanthus'', and other novelties in the ''Calea'' Alliance I. ''Phytoneuron'' 2023-42: 1–171. Published 6 November 2023. ISSN 2153-733X</ref>
==References== {{Reflist}}
{{Taxonbar|from= Q87199254|from2=Q135106795}}
Category:Monotypic Asteraceae genera Category:Endemic flora of Mexico Category:Flora of Chiapas Category:Flora of Oaxaca Category:Taxa described in 1914 Category:Taxa named by Townshend Stith Brandegee Category:Neurolaeneae Category:Taxa named by Jesse More Greenman