2n = 79, c. 76–80

Mature rhizome without scales (2.2–)4.5–4.9(–8.2) mm in diameter, rhizome scales up to 10.2 mm long and 2.1 mm wide, with multiseptate hairs restricted to the apex and toothed from the base to the apex. Stipe length (1.7–)9.1– 10.5(–18.4) cm. Lamina (2.4–)10.8–12.3(–28.1) cm long and (2.9–)12.6–22.0(–28.9) cm wide, basal basiscopic secondary pinnae (0.6—)4.3—4.8(—8.1) cm long and (0.3—)2.5—2.9(—6.1) cm wide, false veins frequently present, usually conspicuous and usually extending almost the entire way to the junction of the true veins. Larger ultimate fertile segments usually bearing a single sorus and rarely two or more per segment. Indusia to 1.5 mm long and 1.2 mm wide.

Hoc taxon aDavallia tasmanii subsp. tasmanii tribus particulis differt: venis falsis conspicuis; rhizomate tenuiore; praecipue paucis pilis multicellularibus qui squamarum rhizomatis ab apicibus solis emergunt. Nam pill multicellulares in Davallia tasmanii subsp. tasmanii a base ad apicem squamarum emergunt.