''Rhaphiodon echinus'' is a species 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 ...

in the family

Lamiaceae The Lamiaceae ( ) or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil (herb), ba ...

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to eastern

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

. It is the only known species in the genus ''Rhaphiodon'', first described as a plant genus in 1844.Kew World Checklist of Selected Plant Families
/ref>Vásquez, G.D. & Harley, R.M. (2004). Flora de Grão-Mogol, Minas Gerais: Labiatae. Boletim de Botânica da Universidade de São Paulo 22: 193-204.

References

Lamiaceae Endemic flora of Brazil Plants described in 1823 {{Lamiaceae-stub