Diplazium Swartz

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 18

2. Diplazium Swartz 1

Rhizomes creeping, sparsely covered with ovate, dark brown scales. Leaves erect, distant, usually bipinnate, with pinnules deeply pinnatisect, glabrous above; lamina deflate or ovate-lanceolate; veins free. Sori oblong or linear; indusium oblong or linear, fimbriate at margin, attached laterally along the vein.

Pinnules acuminate, glabrous beneath 1. axillare Pinnules rounded at apex; main veins hairy beneath 2. sibiricum