First published in Fl. Azor.: 40 (1840)
- Nelson, E.C. (2011). Hardy Heathers from the Northern Hemisphere: 1-442. Kew Publishing, Royal Botanic Gardens, Kew.
Not accepted by
- Govaerts, R. (2001). World Checklist of Seed Plants Database in ACCESS E-F: 1-50919. [Cited as Ins. Azor.]
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0