1. ^{{cite journal | vauthors = Schrire BD, Lavin M, Barker NP, Forest F | year = 2009 | title = Phylogeny of the tribe Indigofereae (Leguminosae-Papilionoideae): Geographically structured more in succulent-rich and temperate settings than in grass-rich environments | journal = Am J Bot | volume = 96 | issue = 4 | pages = 816–52 | url = http://www.amjbot.org/content/96/4/816.abstract | doi = 10.3732/ajb.0800185 | pmid = 21628237 }}
2. ^{{cite web | url = http://www.ildis.org/AliceWeb/6.00/names/npall/npall_633.shtml | title = ILDIS LegumeWeb entry for Rhynchotropis | author = | website = International Legume Database & Information Service | publisher = Cardiff School of Computer Science & Informatics | accessdate = 12 February 2017}}
3. ^{{cite web | url = https://npgsweb.ars-grin.gov/gringlobal/taxonomygenus.aspx?id=10458 | title = GRIN species records of Rhynchotropis | author = USDA | author-link = USDA | author2 = ARS | author2-link = Agricultural Research Service | author3 = National Genetic Resources Program | date = | website = Germplasm Resources Information Network—(GRIN) [Online Database] | publisher = National Germplasm Resources Laboratory, Beltsville, Maryland | accessdate = 12 February 2017}}
4. ^¹ {{cite web | url = http://www.theplantlist.org/1.1/browse/A/Leguminosae/Rhynchotropis/ | title = The Plant List entry for Rhynchotropis | date = 2013 | website = The Plant List | publisher = Royal Botanic Gardens, Kew and the Missouri Botanical Garden | accessdate = 12 February 2017}}