- Vittaria flexuosa is generally grows on the trunk or on the wall of a wet cave.The rhizome of plants is transversely, densely scaly; Scales are yellowish brown, shiny, subulate lanceolate, 4-6 mm long, about 0.2-0.5 mm wide at the base, ciliate at the apex, ciliary teeth at the edge, thick mesh wall, dark brown; The leaves are close to each other and often densely clustered.
- Vittaria flexuosa has very narrow leaves, and the sporangium group line is filled with the space between the middle rib and the retrorse leaf edge.
