Cyperus difformis from Tikkar Tal Lake, Morni

[Gurcharan Singh]

Cyperus difformis L., Cent. pl. II:6. 1756 (Amoen. acad. 4:302. 1759)

A tufted annual with numerous fibrous roots; stems trigonous; leaves shorter than stem, smooth; spikes small, up to 5 mm long, dark brown, with scarious margins, forming sessile as well as stalked globose heads. Photographed on April 10 from wet ground around Tikkar tal lake, Morni, Haryana.

Common names: dirty-Dora, rice sedge, small-flower umbrella-plant, variable flat sedge 
--
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/

[tanay bose]

Yes nice shot Sir Ji

Tanay

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Tanay Bose

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[Gurcharan Singh]

thanks Tanay

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[H S]

Correct name for C. difformis is C. fuscus L. in 1753

anyhow this picture doesnt look like C. fuscus




--

 - H.S.

A scientific man ought to have no wishes, no affections, - a mere heart of stone

[Gurcharan Singh]

Dear H S

C. difformis and C. fuscus are two distinct species as per Kew Plant List

http://www.theplantlist.org/tpl/record/kew-236342

It would be good if you inform us about your source as requested by other members also.

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[J.M. Garg]

Forwarding again for Id confirmation or otherwise please.

Some earlier relevant feedback:

“Correct name for C. difformis is C. fuscus L. in 1753

anyhow this picture doesnt look like C. fuscus
--

 - H.S.”

 

“C. difformis and C. fuscus are two distinct species as per Kew Plant List

http://www.theplantlist.org/tpl/record/kew-236342
It would be good if you inform us about your source as requested by other members also.

--
Dr. Gurcharan Singh”

--

With regards,
J.M.Garg (jmg...@gmail.com)
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[Gurcharan Singh]

Cyperus difformis and C. fuscus are two distinct species, recognised by all prominent Floras

This plant is C. difformis, characterised by globose heads of more than 40 spikes

C. fuscus has much fewer spreading spikes

http://australian-insects.com/lepidoptera/plants/cype/cyperus-difformis.jpg

http://luirig.altervista.org/cpm/albums/bot-hawaii10/04797-Cyperus-difformis.jpg

http://luirig.altervista.org/cpm/displayimage.php?album=41&pos=3897

http://www.efloras.org/object_page.aspx?object_id=44822&flora_id=5

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[J.M. Garg]

A reply:

"Cyperus difformis L." from Nirbhay ji.