Barrett, R.L., Schmidt-Lebuhn, A.N. & Thiele, K.R. (28 March 2013), Two Western Australian species of Ozothamnus transferred to Pithocarpa (Asteraceae: Gnaphalieae). Nuytsia 23: 107 APC [comb. nov.]

basionym: Helichrysum cordatum DC. legitimate nomenclatural synonym: Gnaphalium cordatum (DC.) Sch.Bip. legitimate nomenclatural synonym: Ozothamnus cordatus (DC.) Anderb. legitimate

• APC Dist.: WA

Parker, C.M. & Biggs, L.J. (1 May 2014), Updates to Western Australia's vascular plant census for 2013. Nuytsia 24: 59 [secondary reference]

nomenclatural synonym: Ozothamnus cordatus (DC.) Anderb. legitimate

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 52-53, photos 1-3 [secondary reference]

nomenclatural synonym: Helichrysum cordatum DC. legitimate nomenclatural synonym: Ozothamnus cordatus (DC.) Anderb. legitimate common name: Tangle Daisy [n/a]

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