General:
Deciduous perennial, 0.5-7 cm tall.
Trophophores:
Oblong to widely triangular, unstalked or narrowed into short stalks, usually simple; pinnae usually overlapping, up to 1.5 cm long, pinnules usually entire or shallowly lobed.
Sporophores:
1-pinnate, 1-8 times length of trophophores.