Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 409 [tax. nov.]

• Type: (not designated).

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 29 [taxonomic synonym]

taxonomic synonym of: Polycnemum L. legitimate

Black, J.M. (1924), Casuarinaceae - Euphorbiaceae. Flora of South Australia 2: 209 [secondary reference]

• Etymology: Greek hemi, half; khroa, color: the perianth of H. pentandra is sometimes pink inside, whitish outside.

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 323 [secondary reference]

• Etymology: "Greek hemi, half; khroa, colour; the perianth of H. pentandra is sometimes pink inside, whitish outside"

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 128 [secondary reference]

Curtis, W.M. (1967), Angiospermae: Plumbaginaceae to Salicaceae. The Student's Flora of Tasmania 3: 576 [secondary reference]

George, A.S. in Jessop, J.P. (ed.) (1981), Amaranthaceae (except Ptilotus). Flora of Central Australia: 85 [secondary reference]

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Amaranthaceae. Flora of the Perth Region 1: 94 [secondary reference]

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Amaranthaceae. Flora of the Kimberley Region: 121 [secondary reference]

Kuhn, U. in Kubitzki, K. (ed.) (1993), Chenopodiaceae. The Families and Genera of Vascular Plants 2: 279 [secondary reference]

Walsh, N.G. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Amaranthaceae. Flora of Victoria 3: 200 [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

pro parte taxonomic synonym: Polycnemum L. legitimate

• APC Dist.: WA, NT, SA, Qld, NSW, Vic, Tas

Western Australian Herbarium (2007), FloraBase: the Western Australian Flora Version 2.5: - [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 399 [secondary reference]

Masson, R. & Kadereit, G. (2013), Phylogeny of Polycnemoideae (Amaranthaceae): Implications for biogeography, character evolution and taxonomy. Taxon 62(1): 109 [secondary reference]

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [secondary reference]

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