Domin, K. (1926), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 801-802, t. 24, Fig. 9-15 [tax. nov.]

• Type: "Queensland: offene Grasflächen bei Hughenden, eine robuste groβe Form; am Flinders River bei Hughenden, eine kleine Form (DOMIN II. 1910)."

Windler, D.R. (1966), A revision of the genus Neptunia (Leguminosae). Australian Journal of Botany 14(3): 405-408, fig. 13 [secondary reference]

• Type: "Domin II 1910 (PR), near Hughenden."

Cowan, R.S. in McCarthy, P.M. (ed.) (1998), Mimosaceae. Flora of Australia 12: 23 APC [secondary reference]

common name: Selenium Weed [n/a]

• APC Dist.: Qld

Bean, A.R. (16 November 2022), A revision of Neptunia Lour. (Leguminosae: subfamily Caesalpinioideae, Mimosoid clade) in Australia and Malesia. Austrobaileya 12: 67 [secondary reference]

• Lectotype: "Australia. Queensland. Burke District: in grassy areas opposite Hughenden, February 1910, K. Domin s.n. (lecto: PR 527689 [here designated]; isolecto: PR 527688)."

• Text: "Domin evidently made two gatherings of Neptunia amplexicaulis in the Hughenden area; a robust form from the grasslands, and a small form from the Flinders River (Domin 1926). A specimen from the “grassland” gathering is here designated as lectotype."

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