Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 210 [comb. nov.]

basionym: Synostemon rigens F.Muell. legitimate nomenclatural synonym: Phyllanthus rigens (F.Muell.) Müll.Arg. legitimate nomenclatural synonym: Diasperus rigens (F.Muell.) Kuntze legitimate

Airy Shaw, H.K. in Jessop, J.P. (ed.) (1981), Synostemon, Petalostigma. Flora of Central Australia: 193 [nomenclatural synonym]

nomenclatural synonym of: Synostemon rigens F.Muell. legitimate

Hunter, J.T. & Bruhl, J.J. (8 July 1997), Two new species of Phyllanthus and notes on Phyllanthus and Sauropus (Euphorbiaceae: Phyllantheae) in New South Wales. Telopea 7(2): 162 [nomenclatural synonym]

nomenclatural synonym of: Sauropus rigens (F.Muell.) Airy Shaw legitimate

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Sauropus rigens (F.Muell.) Airy Shaw legitimate

---