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Cyathea gigantea (Wall. ex Hook.) Holttum

Synonyms
:

Alsophila gigantea Wall. ex Hook.

Family
:
Cyatheaceae
Distribution
:
India, SriLanka, Nepal, Myanmar, Thailand, Laos, Vietnam
Distribution in Kerala                
:
Palakkad, Malappuram, Pathanamthitta, Idukki
Habitat
:
On the banks of rivers and streams in moist localities
Uses
:
Used as hair tonic
Key Botanical Characters :                      
Trunk 1-2 m long, bearing closely set leaf bases, scales densely covering the apex of the trunk, bases of petiole swollen, petiole tufted, crown of leaves at the apex, streaks distributed all over the surfaces of petiole and rachis. Leaves bipinnate, dark green when fresh, brown when dry. Primary and secondary leaflets present, margins usually lobed, lobes about 10 pairs. Sori median on the veins, rounded, forming two zigzag rows below leaf margins.






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