First published in Rev. Hort. (Paris) 39: 340 (1867)
- Flora of North America Editorial Committee (2010). Flora of North America North of Mexico 7: 1-797. Oxford University Press, New York, Oxford.
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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
Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/