1. Catalogue of the flowering plants and gymnosperms of Peru.;Brako;Monographs in Systematic Botany from the Missouri Botanical Garden,1993
2. Tribe Eupatorieae.;Hind;Volume VIII, Flowering Plants, Eudicots: Asterales. Springer, Berlin, New York,2007
3. Excursiones botánicas a los alrededores de Tocopilla.;Jaffuel;Revista Chilena de Historia Natural,1936
4. Papers on the flora of Northern Chile.;Johnston;Contributions from the Gray Herbarium of Harvard University,1929
5. New records for the flora of the Nitrate Coast.;Johnston;Revista Chilena de Historia Natural,1932