Both looks very similar. Identity can be confirmed by checking the specimens.

Rachis of spikes glabrous and keel of the glumes smooth (not spinulose ciliate) ………….. C. iria
Rachis of spikes hispid on angles and keel of the glumes spinulose ciliate ………………….. C. alulatus 

Spikes finally reflexed; glumes 1.5-2 mm….. Cyperus alulatus
Spikes suberect; glumes 1-1.5 mm…………. Cyperus iria

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not Cyperus iria: Plz. identify the attached one. I think this is not Cyperus iria.


I think due to observing the image it is Cyperus iria
I look similar to Cyperus alulatus and the difference are as follows

Spikes finally reflexed; glumes 1.5-2 mm….. Cyperus alulatus

Spikes suberect; glumes 1-1.5 mm…………. Cyperus iria



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Cyperus species photographed from Dachhigam Kashmir. Pl. help in ID.


Cyperus iria


Attachments (2). 2 posts by 2 authors.

This is again from Panipat, wanted to mix this with Cyperus iria upload, not sure it is same or different..help requested for id…


I think yes, C. iria.



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¿ Poaceae / Cyperaceae ?
¿ Grass / Sedge ?

Place, Altitude: Vaghbil, Thane … about 60 ft asl
Date, Time: 02 AUG 08 … 02:46pm
Habitat: scrub vegetation during monsoon
Habit: small erect herb; perhaps just about 1.5 – 2 ft (guess)


A sedge. I hope Cyperus iria, although not very sure.


I also agree with …


Wonderful photographs.
I remember observing this on open lands. Used to play with this widely growing grass and making boundaries all around it and calling it as rice fields during my childhood.


 

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Poaceae, Cyperaceae and Juncaceae Week: Cyperaceae- 05042013GS5 Cyperus for ID from Karnal-GS45 : Attachments (2). 4 posts by 2 authors.

Cyperus sp. photographed from Karnal, pl. help in ID


The images was not clear but I think it is Cyperus iria



 

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Poaceae, Cyperaceae and Juncaceae Week :: Cyperaceae: Cyperus for id from Karnal- NS 51 :  Attachments (2). 6 posts by 3 authors

This sedge was shot from Karnal district, looks like Cyperus iria, please suggest an id…


It is Cyperus iria L. to me too.


Thanks … for follow up and … for confirming Id..


I have a Bengali booklet which features this species, along with other 3 or 4 sedges.



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Hooghly : Cyperus iria L. :  Attachments (6). 1 post by 1 author.

This should be Cyperus iria L.,

JAL-MADUR-KATHI / BUNO MADUR-KATHI in Bengali

recorded on 21/7/13, between village roadside and paddyfield.



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Hooghly – seems to be Cyperus iria L. :  Attachments (5). 1 post by 1 author.

This one found beside drainage, today. (5.8.13)



 

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Requesting to please ID this sedge captured in a residential building compound in Mumbai growing wild in the rains in August 2013.


It looks like Cyperus iria L. – http://floridagrasses.org/cyperus_iria.htm.


Thank you … for the feedback… Efi database does not have a page on Cyperus iria…


The page is at –

/species/a—l/cl/cyperaceae/cyperus/cyperus-iria


Thanks …, must have searched with the wrong spelling…



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ID of Cyperaceae sp. 1. from Assam KD 01. Oct. : 3 posts by 2 authors. Attachments (5).
Attached images are Cyperaceae sp. Please ID the plant.
Date :31.08.2014
Location: Assam
Family : Cyperaceae
Genus & species : ??
Habitat: Grows wild on open space

Habit :Herb


Looks like Cyperus iria


Thank you very much Sir for ID.



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Cyperaceae for id : 11 posts by 4 authors. Attachments (1)- 6 mb.

Request for id of a Cyperaceae from Bilaspur. Photographed in May 2020.


Attaching another photo of the plant.

Attachments (1)- 3 mb.


Cyperus eleusinoides Kunth ??


Thank you .. It is interesting.


Is it Cyperus iria?


Both Cyperus iria and Cyperus alulatus, appear quite close


This can be either Cyperus iria or Cyperus alulatus. Both looks very similar. Identity can be confirmed by checking the specimens.

Rachis of spikes glabrous and keel of the glumes smooth (not spinulose ciliate) ………….. C. iria
Rachis of spikes hispid on angles and keel of the glumes spinulose ciliate ………………….. C. alulatus 

Thank you very much … I will check from fresh specimens and report.

I checked the plant material. Based on the key given by … it is Cyperus iria.



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SK 2739 19 August 2020 : 14 posts by 3 authors. 10 images- 5 to 7 mb each.
Location: Gyaneswor, Kathmandu, Nepal
Date: 17 August 2020

Altitude: 1300 m

Habitat : Wild 

Cyperus species ?????


I have no idea but could be.


Cyperus exaltatus


Cyperus iriaCyperaceae


Thank you … for the correct ID Cyperus iria L. !
I was not sure about the ID Cyperus exaltatus!

Nepali Names : मोथे Mothe/ छाता मोथे Chhaataa Mothe/ छतरे मोथे Chatare Mothe



SK 2780 15 October 2020 – Grass : 13 posts by 3 authors. 7 images- 4 to 7 mb each.
Location: Badikhel, Lalitpur
Date: 19 September 2020
Elevation: 1734 m.
Habit : Wild
Cyperus ……. ???

Check with Cyperus iria


Does it matches as per As per efi thread ?:

Both look very similar.

Rachis of spikes glabrous and keel of the glumes smooth (not spinulose ciliate) ….. C. iria
Rachis of spikes hispid on angles and keel of the glumes spinulose ciliate ……. C. alulatus 

I tried to understand the terms in the keys. Based on that, Id should be OK, as per keys.


 

Cyperus Species for ID : Nasik : 03DEC20 : AK-05

Seen on the Gangapur Grasslands, close to the water body.
2 images.


Same in this case also –  clear close-ups !


Resembles Cyperus iria


.

References:

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