Adiantum formosum

Rhizome creeping, coarse, covered with scales. Fronds well separated, erect, 60–100 cm long. Stipe long, relatively stout, purplish-brown to black, polished, slightly roughened, scaly near base. Lamina broadly triangular, 3–4-pinnate, dark green, moderately firm, glabrous; rachises dark brown to black, minor rachises with short, curved, reddish-brown hairs. Pinnae shortly stalked, distant; pinnules short stalked at corners, sub-rhomboidal, asymmetric, 5–15 mm long, 2–6 mm wide, lower margins almost straight and entire, upper margins rounded, shallowly or deeply lobed, scalloped or toothed. Sori 4–8, relatively small, in shallow depessions of lobes, covered by broadly half-moon shaped to oblong reflexed leaf flap.