- ≡ Lomaria punctulata (Sw.) Kunze, Linnaea 10: 507 (1836)
- ≡ Mesothema punctulatum (Sw.) C.Presl, Epimel. Bot. 113 (1851)
- ≡ Struthiopteris punctulata (Sw.) Trev., Atti Reale Ist. Veneto Sci. Lett. Arti III, 14: 570 (1869)
- ≡ Spicanta punctulata (Sw.) Kuntze, Revis. Gen. Pl. 2, 822 (1891)
Blechnum punctulatum has an erect rhizome with dimorphic fronds up to 380 mm long and 70 mm wide. The sterile pinnae are narrowly triangular with acuminate apices, glabrous, up to 38 mm long and 6 mm wide, but expanded at the base. The proximal pinnae reduce abruptly to several pairs of tiny flanges. The fertile pinnae are of similar length but only 2–3 mm wide, sometimes with a narrow wing of green lamina tissue outside the two rows of sori and indusia either side of the costa.
North Island: Auckland.
Altitudinal range: c. 20 m.
Collected from one site in Auckland City.
Occurs naturally in eastern and southern Africa and Madagascar.
Recorded as a cultivation escape occurring sporadically on basalt retaining walls in Auckland City.
de Lange et al. (2005, pp. 131–132 – as Blechnum nudum; see Heenan et al. 2008). Voucher AK 291065, 2005.