Eriachaenium is a genus of South American flowering plants in the family Asteraceae.Schultz, Carl Heinrich Bipontinus. 1855. Flora 38(8): 120–121 in LatinTropicos, Eriachaenium Sch. Bip.
There is only one known species, Eriachaenium magellanicum, native to southern South America: Argentina (Tierra del Fuego, Chubut, Santa Cruz) and Chile (Magallanes).Zuloaga, F. O., O. Morrone, M. J. Belgrano, C. Marticorena & E. Marchesi. (eds.) 2008. Catálogo de las plantas vasculares del Cono Sur. Monographs in systematic botany from the Missouri Botanical Garden 107(1–3): i–xcvi, 1–3348.
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