Literature

• Axelrod, F.S. 2015. A Systematic Vademecum to the Vascular Plants of Sint Eustatius. 179 pp.
• Boom, B.M. 2008. Flowering Plants. Plants & Lichens of St. Eustatius The New York Botanical Garden. [link]
• Howard, R.A. 1988. Dicotyledoneae - Part 1. In: Flora of the Lesser Antilles, Leeward and Windward Islands. 4: 673. Arnold Arboretum, Harvard University, Jamaica Plain, Massachusetts.

Literature references linked to higher taxa

• Encyclopedia of Life. [link] (Nyctaginaceae)
• The Plant List 2013. The Plant List version 1.1. [link] (Bougainvillea)