Pteridaceae: the Maidenhair Family
Habit: herbs, creeping rhizomes
Leaves: simple or 1-6 times compound, mono- or dimorphic, circinate vernation
Sporangia stalked, small, with an erect partial annulus, in sori or scattered on undersurface of leaf
Indusium present or absent, when present formed by reflexed margin of pinnules
Ornamentals: Adiantum, Pteris, etc.