Gutierrezia mendocina (Asteraceae, Astereae) , una nueva especie sudamericana

Abstract

A taxonomic revision of the South American species of Gutierrezia has revealed a new species from Argentina, characterised by its stems with the base prostrate and rooting, turbinate heads and white ray florets. This species, found in the Department of Tunuyan of Mendoza Province (Argentina), is described and illustrated and a key to differentiate it from allied species is given.