Bentham, G. (30 May 1863), Flora Australiensis 1: 428 [comb. nov.]

basionym: Trymalium spadiceum Fenzl legitimate taxonomic synonym: Pomaderris hirsuta Steud. legitimate taxonomic synonym: Trymalium thomasioides Turcz. legitimate

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 111 [secondary reference]

Rye, B.L. (11 January 1995), New and priority taxa in the genera Spyridium and Trymalium (Rhamnaceae) of Western Australia. Nuytsia 10(1): 130, Fig. 3A-D [secondary reference]

• Type: King George Sound, [Western Australia], Huegel (PERTH 01534971).

nomenclatural synonym: Trymalium spadiceum Fenzl legitimate nomenclatural synonym: Cryptandra spadicea (Fenzl) F.Muell. legitimate taxonomic synonym: Pomaderris hirsuta Steud. legitimate taxonomic synonym: Trymalium thomasioides Turcz. legitimate

Rye, B.L. (31 July 1996), A synopsis of the genera Pomaderris, Siegfriedia, Spyridium and Trymalium (Rhamnaceae) in Western Australia. Nuytsia 11(1): 124, Fig. 6D (map) [secondary reference]

nomenclatural synonym: Trymalium spadiceum Fenzl legitimate nomenclatural synonym: Spyridium spadiceum (Fenzl) Benth. var. spadiceum legitimate nomenclatural synonym: Cryptandra spadicea (Fenzl) F.Muell. legitimate taxonomic synonym: Pomaderris hirsuta Steud. legitimate taxonomic synonym: Trymalium thomasioides Turcz. legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Trymalium spadiceum Fenzl legitimate nomenclatural synonym: Spyridium spadiceum (Fenzl) Benth. var. spadiceum legitimate nomenclatural synonym: Cryptandra spadicea (Fenzl) F.Muell. legitimate taxonomic synonym: Pomaderris hirsuta Steud. legitimate taxonomic synonym: Trymalium thomasioides Turcz. legitimate

• APC Dist.: WA

Kellermann, J., Mosyakin, S.L., Clowes, C. & Udovicic, F. (1 December 2022), Australian species of Rhamnaceae published by Turczaninow, their types, current names and synonyms. Swainsona 36: 143 [secondary reference]

nomenclatural synonym: Trymalium spadiceum Fenzl legitimate nomenclatural synonym: Cryptandra spadicea (Fenzl) F.Muell. legitimate taxonomic synonym: Pomaderris hirsuta Steud. legitimate taxonomic synonym: Trymalium thomasioides Turcz. legitimate

• Etymology: "From the Latin spadiceus (date-coloured, bright brown; see Stearn 1983), possibly on account of the dark reddish-brown inflorescence bracts of the species (as displayed by the holotype), or because of the conspicuous rusty indumentum on young branches."

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