Brooker, M.I.H. & Hopper, S.D. (15 April 2002), Taxonomy of species deriving from the publication of Eucalyptus subseries Cornutae Benth. (Myrtaceae). Nuytsia 14(3): 353-354 APC [tax. nov.]

• Type: "Needilup Rd, 6.8 km south of East Rd, Western Australia, 21 July 1988, M.I.H. Brooker 10003 (holo: CANB; iso: PERTH)."

• APC Dist.: WA

• Etymology: "From the Greek, thamnos (shrub or bush), in reference to the habit compared with the related mallet species, E. astringens."

French, M. & Nicolle, D. (2019), Eucalypts of Western Australia: The south-west coast and ranges: 82-83 [secondary reference]

common name: brown mallee [n/a]

Percy-Bower, J.M. & Parker, C.M. (24 June 2021), Updates to Western Australia’s vascular plant census for 2020. Nuytsia 32: 11 [secondary reference]

nomenclatural synonym: Eucalyptus thamnoides Brooker & Hopper subsp. thamnoides legitimate taxonomic synonym: Eucalyptus thamnoides subsp. megista Brooker & Hopper legitimate

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