lytteltonensis Laing & A.Wall, Myosotis lytteltonensis (Laing & A.Wall) de Lange Myosotis australis is a species of flowering plant in the family Boraginaceae, native to New Zealand, Australia and New Guinea.

[3] The species was originally described by Robert Brown in his Prodromus florae Novae-Hollandiae et Insulae Van Diemen 1810.

[2][4][5] The lectotype was collected by Robert Brown on the "banks of Paterson River" (New South Wales, Australia), is lodged at the herbarium of the Natural History Museum (BM 000939408),[6] and was designated by Carlos Lehnebach.

[5] The species epithet australis is a Latin word that means south or southern, referring to its presence in Australia.

[11] Two subspecies are recognised in the latest taxonomic treatment: Myosotis australis subsp.

[5] The subspecies are allopatric, and can be distinguished from one another based on the presence of hooked hairs on the underside of the uppermost cauline leaves, length and length to width ratio of the rosette leaf blade, presence of stolons.

[5][13] In both studies, within the southern hemisphere lineage, the M. australis individuals were not monophyletic, but in general species relationships were not well resolved.

Both surfaces of the leaf are uniformly and densely covered in flexuous, patent to erect hairs oriented parallel or oblique to the midrib.

Each rosette has 1–17 ascending to erect, sometimes lax or decumbent (rarely prostrate or dwarfed), branched or unbranched, partially bracteate inflorescences that are not bifurcating at the top and are up to 630 mm long.

The flowers are 3–96 per inflorescence (rarely as many as 230), and each is borne on a short pedicel, with or without a bract.