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The pteridophytes have well-differentiated plant bodies, consisting of roots, stems and leaves. Moreover, they possess vascular bundles.
Most of them are terrestrial plants flourishing well in moist and shady places, and some of them are aquatic.
This group includes the vascular cryptogams like clubmosses, horse-tails and ferns which are universally distributed all over the world.
The north-eastern region (including Eastern Himalaya) is rich in pteridophytic diversity, followed by south India (including Eastern and Western Ghats) and north India (including Western Himalaya).