''Sigmatanthus'' is a
monotypic genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...
of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
s belonging to the family
Rutaceae
The Rutaceae () is a family (biology), family, commonly known as the rue[RUTACEAE](_blank)
in Bo ...
. 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