''Sigmatanthus'' is a
monotypic genus of
flowering plants belonging to the family
Rutaceae. The only species is ''Sigmatanthus trifoliatus''.
The species is found in Northern and Northeastern Brazil.
References
{{Taxonbar, from1=Q9077254, from2=Q18083857
Zanthoxyloideae
Zanthoxyloideae genera
Monotypic Rutaceae genera