''Megalachne'' is a genus of Chilean plants in the

grass family Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and ...

, found only on the Juan Fernández Islands in the Pacific Ocean, part of the

Republic of Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...

. A genetic analysis found it to be most closely related to the extinct '' Podophorus'', also endemic to the Juan Fernández archipelago. This clade was in turn found to be nested within a

paraphyletic In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...

'' Festuca'', most closely related to ''F. pampeana'' of South America. ; SpeciesThe Plant List search for ''Megalachne''
/ref> * '' Megalachne berteroniana'' Steud. * '' Megalachne masafuerana'' (Pilg.) Matthei ; formerly included see '' Eriachne'' * ''Megalachne zeylanica - syn of

Eriachne triseta ''Eriachne'' (common name Wanderrie grass) is a genus of plants in the grass family. Most of the species are found only in Australia, with the ranges of a few extending northward into New Guinea, parts of Asia, and Micronesia. It is found in are ...

References

Endemic flora of the Juan Fernández Islands Poaceae genera Pooideae {{Pooideae-stub