George, A.S. (25 January 1996), New taxa and a new infrageneric classification in Dryandra R.Br. (Proteaceae: Grevilleoideae). Nuytsia 10(3): 340-341 [tax. nov.]

• Type: W of Peringillup, Western Australia, 30 September 1971, A.S.George 11068(holo: PERTH 04110560; iso: CANB, K, MEL, PERTH 04110579).

• Etymology: "Named from the Latin imberbis (not bearded), in reference to the glabrous or almost glabrous perianth limb."

George, A.S. in Wilson, A.J.G. (ed.) (1999), Dryandra. Flora of Australia 17B: 280, Fig. 40, Map 292 [secondary reference]

• APC Comment: Natural hybrids with Dryandra squarrosa subsp. squarrosa are known.

Mast, A.R. & Thiele, K.R. (26 February 2007), The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae). Australian Systematic Botany 20(1): 70 [basionym]

basionym of: Banksia subpinnatifida var. imberbis (A.S.George) A.R.Mast & K.R.Thiele legitimate

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