Cyperus pumilus

Cyperus pumilus L., Cent. Pl. II: 6 (1756). (syn: ....................) as per WCSP;

Pycreus pumilus (L.) Nees, Linnaea 9: 283 1834. (Syn: Cyperus breviculmis F.Muell. [Illegitimate]; Cyperus commutatus Steud.; Cyperus divergens Chapm. [Illegitimate]; Cyperus gymnoleptus Steud.; Cyperus laxiusculus Steud.; Cyperus leucolepis J.Carey ex C.B.Clarke [Illegitimate]; Cyperus nervulosus (Kük.) S.T.Blake; Cyperus nitens Retz.; Cyperus nitens Vahl [Illegitimate] .; Cyperus obstinatus Steud.; Cyperus patens Vahl; Cyperus pulvinatus Nees & Meyen; Cyperus pumilus L. .....; Cyperus punctatus Roxb. [Illegitimate]; Cyperus pusillus Vahl; Cyperus pygmaeus Retz. [Illegitimate]; Cyperus strictus Wight ex C.B.Clarke [Invalid]; Cyperus terminalis Marsh ex Steud.; Cyperus truncatulus Steud.; Dichostylis nitens (Retz.) Palla; Dichostylis patens (Vahl) Palla; Dichostylis patens (Vahl) Rikli [Illegitimate]; Juncellus leucolepis C.B.Clarke; Juncellus pumilus Peter; Pycreus nitens (Retz.) Nees; Pycreus nitens C.B. Clarke .; Pycreus patens (Vahl) Cherm.; Pycreus pulvinatus (Nees & Meyen) Nees; Pycreus pumilus (L.) Domin .; Pycreus punctatus Govind.) as per

 

 
https://08511630493324166816.googlegroups.com/attach/5c7be019a73be2c4/Cyperus-sp-2-Chakrata%20Budher%20caves%20road-P1120967-Chakrata-1.jpg?part=0.3&view=1&vt=ANaJVrEUAc53TgAT9aMA0Mgy9_64srYxsfq8Gv1oWtNBJd_8a7QTz9PthAaQkqjX6jpSn8G4UjNd6uy77JpbMifTEzbSZzOATzWvq3olqE4VnfeYH5sU9DQ
https://08511630493324166816.googlegroups.com/attach/5c7be019a73be2c4/Cyperus-sp-2-Chakrata%20Budher%20caves%20road-P1120966-Chakrata-2.jpg?part=0.2&view=1&vt=ANaJVrHS3L85hdXIn38-NtAFkNjAEY-ZDpBJHoUII7rB-v3cc9zM4bcvlSfMjlG4zfCs3iH9RFMXA0mJzIy3Hw6QlgxHs9M2SsLSKpqA-cfbHDgLJAqy50A
https://08511630493324166816.googlegroups.com/attach/5c7be019a73be2c4/Cyperus-sp-2-Chakrata%20Budher%20caves%20road-P1120964-Chakrata-3.jpg?part=0.1&view=1&vt=ANaJVrHzWnSEEORC7DaCeslKxiFIUgkZVlFYUyeQgF4Ei_ii6Z87EmY1qpVNB3N9zQnKjHjN-hlpmARkUQlAy5M1LlIO7z5tACzvPvkB0O4j63SkyJmO0j4

Cyperus species photographed from Chakrata area. Kindly help in ID.
I think Pycreus pumilus  

 
 
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https://08511630493324166816.googlegroups.com/attach/221f980731c7e864/6366.jpg?part=0.3&view=1&vt=ANaJVrHKJOcg4Ix42ag4y8U8eSZRaAhp_zBhKIL3fqN21mKwPnWz8lE5CjRRsCBB5pZePWzOeZy4yKSHA6OAl_Ri7IFwOEKhe72fS9qgikCSDw6l_iwISJo
https://08511630493324166816.googlegroups.com/attach/221f980731c7e864/6372.jpg?part=0.5&view=1&vt=ANaJVrEW_WOylbLTuz-TizY7IRApNe9E2HwsBSuKDcvymaIP0OxXpYVVAM_H3hJV94U5lorTkCY9qZfsK2pReeWcfb7NqigrK5KVfFdCCCbTr3_Kmj-xhqg
cyperaceae id from Hooghly 4/11/12 sk2: This is growing at ground level in an uncultivated moist land. It is so dwarf that couldn't find its culm. Moreover, it was hard to clear surrounding grasses and other tiny herbs growing densely along with this cyperus member.
Any chance of Cyperus cuspidatus Kunth?
Species : UNKNOWN
H & H : dwarf cyperaceae herb; do not have other statistics
Date : 2/11/12, 10.47 a.m.
Place : Hooghly
It may be Pycreus pumilus


 
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https://08511630493324166816.googlegroups.com/attach/a7cb1efc1863483f/Brachythemis_contaminata_female_DSCN8870.jpg?part=0.2&view=1&vt=ANaJVrGzEnlBQMUumyH0vCsqyrPD-WCX-_B1T-p5_NLY65mMs8YBpn4ZlWiiTYdDh6xuRYCr1IxhMYSNmRAEt0KgjXgMDruYHttsmgLyWjXJ6mstGZ3EOQc

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Hooghly yesterday : unknown small cyperaceae Attachments (10). 7 posts by 3 authors.
This small, about 15 cm or less, cyperaceae is also growing in front of our school. Failed to find any suggestive id.
This may be young stage of Pycreus pumilus (L.) Nees, as have been identified earlier by ..., in - https://groups.google.com/forum/?hl=en&fromgroups#!topic/indiantreepix/btmeFftvT_M.
Please let us know how to differentiate cyperaceae from poaceae?
I know nothing (botanical) about them, except that 1) if they have triangular stem/culm they are cyperaceae, 2) if they have round hollow stem they are usually poaceae; except that some may be juncaceae. The following links have more details -
 
  
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