"Genus: Butia (Becc.) Becc". Germplasm Resources Information Network. United States Department of Agriculture. 2010-03-16. Archived from the original on 2012-10-22. Retrieved 2012-11-14.
Soares, Kelen Pureza; Longhi, Solon Jonas; Neto, Leopoldo Witeck; de Assis, Lucas Coelho (2014). "Palmeiras (Arecaceae) no Rio Grande do Sul, Brasil". Rodriguésia - Revista do Jardim Botânico do Rio de Janeiro (in Portuguese). 65 (1): 113–139. Retrieved 22 September 2018.
Porcher, Michel H. (20 April 2003). "Sorting Butia names". Multilingual Multiscript Plant Name Database (MMPND). University of Melbourne. Retrieved 3 October 2018.
web.archive.org
"Genus: Butia (Becc.) Becc". Germplasm Resources Information Network. United States Department of Agriculture. 2010-03-16. Archived from the original on 2012-10-22. Retrieved 2012-11-14.