What is Plectocephalus formosus?
Plectocephalus formosus is a thistle erected by [[Ravenna]] as a Centaurea (i.e. C formosa [[Pierfelice Ravenna|Ravenna]]) ==Taxonomy== P formosus (Ravenna) Penneck. and [[Gloria Rojas Villegas|Gl.Rojas]] {{wikispecies}} [[file:Plectocephalus_chilensis_por_Pato_Novoa_001.jpg|92px]] {{commons-inline|Plectocephalus|Plectocephalus}} {{biology-stub}} [[Category:Asteraceae]]