First published in J. Fed. Malay States Mus. 10: 141 (1920)
- Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Not accepted by
- Wong, K.M. (1989). Rubiaceae Tree Flora of Malaya 4: 1-549. Longman Malaysia, Petaling Jaya. [Cited as Ixora pendula var. pendula.]
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/
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