Ophioglossum petiolatum

Ophioglossum petiolatum Hook., Exot. Fl. 1: 56, pl. 56 1823. (syn: Ophioglossum cognatum Presl; Ophioglossum elongatum R. Cunn. ex A. Cunn.);

SK538 04 JUN-2017:ID : 8 posts by 3 authors. Attachments (3)
Location: Kalimpong, India
Date: 23 May  2017
Altitude: 4400 ft.

Ophioglossum sp.
It is pteridophyte
Thank you Smita for the clue.
Ophioglossum petiolatum Hook. ???? 

This is Ophioglossum petiolatum. It has a curious habit of invading pots of plants in gardens, and is common on rooftop gardens in Kathmandu, for example - and I hear the same happens elsewhere.  It blows in the wind (I mean the spores do!) and establishes itself.  Nice little thing. Like most or nearly all Ophioglossum species it propagates by root-buds and forms colonies where it has spread to.
Thank you.
Nepali Name : जिब्रे साग Jibre Saag 

Ophioglossum petiolatum Hook. : 4 posts by 1 author. 4 images- 1 mb each.
Location: Kalimpong, WB, India
Date: 26 November 2019 
Elevation: 1350m.
Habitat: Wild