Mueller, F.J.H. von (1868), Fragmenta Phytographiae Australiae 6(49): 231 [tax. nov.]

• Type: "Ad fluminis Victoriae partem superiorem nec non ad rivos Hooker's et Sturt's Creek; F.M. Ad sinum Nichol's Bay; P. Walcott, Ad portum Roebuck-Bay; J.Martin."

Bentham, G. (1870), Flora Australiensis 5: 236 [basionym]

basionym of: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate

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

Mueller, F.J.H. von (13 May 1889), Systematic Census of Australian Plants Suppl. 4: 5 [secondary reference]

Domin, K. (1921), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 637 [nomenclatural synonym]

nomenclatural synonym of: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate

Benl, G. (15 November 1958), Beitrag zu einer Revision der Gattung Ptilotus R.Br. (Amaranthaceae). Mitteilungen der Botanischen Staatssammlung Munchen 2: 405 [secondary reference]

taxonomic synonym: Trichinium procerum Diels legitimate

Benl, G. in Jessop, J.P. (ed.) (1981), Ptilotus. Flora of Central Australia: 82 [secondary reference]

nomenclatural synonym: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate common name: Weeping mulla mulla [n/a]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 73 [secondary reference]

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Amaranthaceae. Flora of the Kimberley Region: 124, Fig. 31D [secondary reference]

common name: Weeping Mulla Mulla [n/a]

Moore, P. (2005), A guide to plants of inland Australia: 254 (photo, map) [secondary reference]

common name: Weeping Mulla Mulla [n/a]

• Etymology: calostachyus: with a beautiful flower spike.

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

nomenclatural synonym: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate taxonomic synonym: Arthrotrichum calostachyum F.Muell. nom. inval., nom. prov. taxonomic synonym: Arthrotrichum calostachyum F.Muell. nom. inval., nom. prov.

• APC Dist.: WA, NT, Qld

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

common name: Weeping Mulla-mulla [n/a]

Bean, A.R. (11 November 2008), A synopsis of Ptilotus (Amaranthaceae) in eastern Australia. Telopea 12(2): 232 [secondary reference]

• Lectotype: Western Australia, Roebuck Bay, undated, J. Martin s.n.; lecto MEL, here chosen.

nomenclatural synonym: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate nomenclatural synonym: Ptilotus calostachyus F.Muell. var. calostachyus legitimate taxonomic synonym: Trichinium procerum Diels legitimate taxonomic synonym: Ptilotus calostachyus var. procerus (Diels) Benl legitimate

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Trichinium calostachyum (F.Muell.) F.Muell. ex Benth. legitimate nomenclatural synonym: Ptilotus calostachyus F.Muell. var. calostachyus legitimate taxonomic synonym: Arthrotrichum calostachyum F.Muell. nom. inval., nom. prov. taxonomic synonym: Arthrotrichum calostachyum F.Muell. nom. inval., nom. prov. taxonomic synonym: Trichinium procerum Diels legitimate taxonomic synonym: Ptilotus calostachyus var. procerus (Diels) Benl legitimate

• APC Dist.: WA, NT, Qld

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