''Frailea pygmaea'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of ''

Frailea ''Frailea'' is a genus of globular to short cylindrical cacti native to South America. These species are cleistogamous. They were first classified in the genus '' Echinocactus''. Species Species accepted by the Plants of the World Online P ...

'' from Bolivia, Argentina, and Uruguay.

References

External links

* * pygmaea Cacti of South America Flora of Argentina Flora of Bolivia Flora of Uruguay {{cactus-stub