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Catalogue of the vascular plants of Ecuador = Catálogo de las plantas vasculares del Ecuador - González, Amada Pedroni. (Missouri Botanical Garden Press, 1999)

Flórula de las reservas biológicas de Iquitos, Perú : Allpahuayo-Mishana, Explornapo Camp, Explorama Lodge - Missouri Botanical Garden. (Missouri Botanical Garden, 1997)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

The genera of the Eupatorieae (Asteraceae) - Robinson, Harold Ernest, 1932 - (Missouri Botanical Garden, 1987)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1974)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1974)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1974)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1974)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2002)