Rhizome slender, creeping, often above-ground; clad in linear-subulate attenuate rufous paleae c. 4 mm. long; stipites ± tufted at intervals along rhizome. Stipes very slender, glab., dark brown, shining, 5-25 cm. long, paleate towards base. Rhachis very slender to filiform, ± flexuous, bearing alt. distant pinnae. Lamina pale green, delicate, ovate- to deltoid-oblong, 3-(4) -pinnate, 15-30 × 7-15 cm. Primary pinnae long-stalked, ovate-lanceolate to deltoid, 4-10 × 2-4 cm. Secondary pinnae long-stalked, 2-3 × c. 1 cm. Tertiary pinnae distinctly stalked, rhomboid to suborbicular, up to 1 × 1 cm.; fertile ones us. rather smaller, shallowly lobed on upper margin, flabellately veined, cuneate to truncate at base. Sporangia protected by pale brown, lunulate to oblong, reflexed margin c. 2 mm. diam.; 2-(6) groups per pinna.

n = 60

Rhizomes creeping, producing runners, scaly. Stipes and rachises glabrous except at very base. Laminae ovate, 10-30 × 6-15 cm, (2)-3-pinnate at base. Primary pinnae alternate, 8-12 on each side of rachis. Ultimate pinnules generally broader than long, either very broadly obovate, orbicular, or broadly ovate, 3-10 × 4-15 mm, cuneate at base, with stalk attached ± centrally, entire or shallowly lobed, glabrous, yellow green. Indusia ± reniform with prominent sinuses, glabrous, 1-4 per pinnule on outer margin only.