(i) The laves are large and are called fronds in ferns.
(ii) Some ferns have simpie leaves with one blade.
(iii) But most ferns have pinnately compound leaves i.e., blades are divided into leaflets or pinnae like feather.
(iv) The pinnately compound leaves may be unipinnate (leaflets not divided), bipinnate (leaflets subdivided one), tripinnate (leflets divided twice.)
(v) Ferns are regarded as ornamental plants because of their graceful compounds leaves.