Kaulfuss, G.F. (1824), Enumeratio Filicum: 28 [tax. nov.]

• Type: Helminthostachys dulcis Kaulf.

Mueller, F.J.H. von (1866), Fragmenta Phytographiae Australiae 5(36): 113 [secondary reference]

Bailey, F.M. (1874), Handbook to the Ferns of Queensland: 67 [secondary reference]

• Etymology: "From helmins, a worm, and stachys, a spike; shape of spike."

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 136 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 635 [secondary reference]

Wagner, W.H. in Kubitzki, K. (ed.) (1990), Ophioglossaceae. The Families and Genera of Vascular Plants 1: 196 [secondary reference]

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Ophioglossaceae. Flora of the Kimberley Region: 27 [secondary reference]

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Ophioglossaceae. Flora of Australia 48: 103 APC [secondary reference]

• APC Dist.: WA, NT, Qld

Short, P., Dixon, D. & Osterkamp Madsen, M. (2003), A review of the ferns and fern allies of the Northern Territory. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 19(3): 16 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 398 [secondary reference]

Christenhusz, M.J.M., Zhang, X.C. & Schneider, H. (2011), A linear sequence of extant families and genera of lycophytes and ferns. Phytotaxa 19: 10 [secondary reference]

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 14 [secondary reference]

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