Basionym Name:Sphaerophorus australis f. angustior Reinke, [as 'Sphaerophoron'], in Pringsheim, Jb. wiss. Bot. 28: 85 (1895)
Homotypic synonyms:Sphaerophorus australis var. angustior (Reinke) Zahlbr., Denkschr. Kaiserl. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 104: 259 (1941)Sphaerophorus melanocarpus f. angustior (Reinke) Js. Murray, Trans. Roy. Soc. N.Z. 88: 190 (1960)