Catalogue of the Vascular Plants of Ecuador.

Catalogue of the Vascular Plants of Ecuador, (2020). Catalogue of the Vascular Plants of Ecuador Missouri Botanical Garden, St. Louis, Missouri, USA. English language

Brazilian flora 2020.

Flora do Brasil, (2020). Brazilian flora 2020 Rio de Janeiro Botanic Garden, Rio de Janeiro, Brazil. English language

Malezas de México. / Weeds of Mexico.

Vibrans, H., (2020). Malezas de México Spanish language

Flora Mesoamericana.

Flora Mesoamericana, (2020). Flora Mesoamericana Missouri Botanical Garden, St. Louis, Missouri, USA. Spanish language

Flora del Conosur. / Flora of the Southern Cone.

Instituto de Botánica Darwinion, (2020). Flora del Conosur Instituto de Botánica Darwinion, San Isidro, Argentina. Spanish language

Galapagos Species Checklist.

Charles Darwin Foundation, (2020). Galapagos Species Checklist Charles Darwin Foundatio, Galapagos, Ecuador. English language

Flora de Nicaragua. / Flora of Nicaragua.

Flora of Nicaragua, (2020). Flora de Nicaragua Missouri Botanical Garden, St. Louis, MO, USA. Spanish language

Flora of Panama (WFO).

Flora of Panama, (2020). Flora of Panama (WFO) Missouri Botanical Garden and Harvard University Herbaria, St. Louis, MO and Cambridge, MA, USA. English language

Paraguay Checklist, Tropicos website.

Paraguay Checklist, (2020). Paraguay Checklist, Tropicos website Missouri Botanical Garden, St Louis, MO, USA. English language

UPRRP Herbarium.

UPRRP, (2020). UPRRP Herbarium University of Puerto Rico, San Juan, Puerto Rico. English language