1. Acevedo-Rodríguez, P., Strong, M. T., 2012. Catalogue of the Seed Plants of the West Indies.Washington, DC, USA: Smithsonian Institution. 1192 pp. http://botany.si.edu/Antilles/WestIndies/catalog.htm
2. Bernardello LM 1986. Números cromosómicos en Asteraceae de Córdoba. Darwiniana 27169–178.
3. Cunningham GM, Mulham WE, Milthorpe PL, Leigh JH, 2011. Plants of Western New South Wales. Australia: CSIRO Publishing.
4. D’Angela E Facelli JM Jacobo E 1988. The role of the permanent soil seed bank in early stages of a postagricultural succession in the Inland Pampa Argentina. Vegetatio 7439–45.
5. Fraga P. García Ó. 2004. Notes and contributions to the knowledge of the flora of Menorca (VI). (Notes i contribucions al coneixement de la flora de Menorca (VI).) Bolletí de la Societat d'Història Natural de les Balears 47143-152.