Synonyms: Arcyphyllum rhombifolium; Copisma falcatum; Copisma tenue; Dolicholus flavus; Dolichos fatmensis (homotypic); Dolichos medicagineus; Dolichos obtusifolius (heterotypic); Galactia rotundifolia (heterotypic); Glycine fridericiana; Glycine lamarckii; Glycine littoralis (homotypic); Glycine memnonia; Glycine microptera (homotypic); Glycine reflexa; Glycine rhombea; Glycine rhombifolia (heterotypic); Glycine schimperi; Hedysarum exiguum; Hedysarum nudum (homotypic); Phaseolus caribaeus; Rhynchosia adenantha; Rhynchosia aureoguttata; Rhynchosia bocandeana; Rhynchosia candollei; Rhynchosia discolor (heterotypic); Rhynchosia ervoidea; Rhynchosia exigua; Rhynchosia falcata; Rhynchosia filicaulis (heterotypic); Rhynchosia flagellaris; Rhynchosia fridericiana; Rhynchosia ischnoclada; Rhynchosia klotzschii; Rhynchosia laxiflora; Rhynchosia medicaginea; Rhynchosia mexicana (heterotypic); Rhynchosia microphylla; Rhynchosia minima var. amaliae; Rhynchosia minima var. diminifolia; Rhynchosia minima var. falcata; Rhynchosia minima var. flagellaris; Rhynchosia minima var. lutea; Rhynchosia minima var. pauciflora; Rhynchosia minima var. tomentosa; Rhynchosia prostrata (heterotypic); Rhynchosia punctata; Rhynchosia rhombifolia (heterotypic); Rhynchosia rhombifolia var. timoriensis; Rhynchosia tenuicaulis; Rhynchosia tenuis
