Symphyotrichum subulatum (Introduced)

Symphyotrichum subulatum (Michx.) G. L. Nesom, Phytologia 77(3) 293. (syn: Aster exilis var. australis A. Gray (ambiguous synonym); Aster flexicaulis Rafin.; Aster linifolius (Bert. ex DC.) Torr. & A. Gray (ambiguous synonym); Aster subulatus Michx. (ambiguous synonym); Aster subulatus var. australis (A. Gray) Shinners; Aster subulatus var. euroauster Fern. & Griscom; Aster subulatus var. obtusifolius Fern.; Chrysocoma linifolia (Bert. ex DC.) Steud.; Erigeron linifolius Bert. ex DC.; Mesoligus subulatus Rafin.; Tripolium subulatum Nees);    

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SK1655 18 Dec 2018 : 14 posts by 4 authors. Attachments (3) - around 500 kb each.
Location: Makalbari, Katmandu, Nepal
Date: 19 July 2014
Altitude:  4400 ft.
Habit : Wild
Lower portion? 
This is from old collection and only images.
Tried all listed in EFN but no luck.
Sir once check with Symphyotrichum subulatum 
It looks exact match but it is not listed in Nepal neither any synonym. No specimen collected.
then newly invading .. its a weed. may be you can publish it. get together with your local botanists
Did not have specimen
We also have one Symphyotrichum novi-belgii in efi. Pl. check.
That is not matching ... As far as I remember the size of flower is around one cm. or less in diameter.
Thanks, ..., for the id.
To me also appears close as per images at



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