Surajit ji, A portion of description from http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200025876 is repeated (copy-pasted along with spelling error!) in http://www.iiim.res.in/herbarium/poaceae/phragmites_karka.htm
Please read "12-40 nun" as "12-40 mm". Yes, your plant does look like *Arundo donax*, but a picture of inflorescence would help to confirm the id. The inflorescence is cone-like and more compact in the former species, but it is effuse and lax in Phragmites karka. Leaves of both the species are more or less comparable. Regards Vijayasankar Raman National Center for Natural Products Research University of Mississippi On Sun, Jul 29, 2012 at 11:16 AM, surajit koley < [email protected]> wrote: > Sir / Madam, > > A Bengali book on some selected grasses informs two similar looking > grasses in West Bengal are *Arundo donax* L. and *Phragmites karka* (Retz,) > Steud., the leaves of the later measure 15-30 cm x 2.5 cm ( > http://www.fao.org/ag/AGP/AGPC/doc/Gbase/DATA/PF000309.HTM) or 80 x 2-3 > cm (http://www.efloras.org/florataxon.aspx?flora_id=3&taxon_id=200025876) > or 30-80 cm long and 12-40 nun (???) ( > http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200025876). > > I think my species is *Arundo donax* > L.<http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200024889> > > Species : *Arundo donax* > L.<http://www.efloras.org/florataxon.aspx?flora_id=3&taxon_id=200024889>? > Habit & Habitat : tall grass, avg. 5 feet tall, leaves 40 cm x 3.8 cm > approx.; a few at far end are more than 8 feet and with broader leaves; > beside railway track > Date : 28/7/12, 9.10 A.M. > Place : Balarambati (Hooghly) > > Thank you & Regards, > > Surajit Koley > >
