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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 The Plant List;
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Tropical & Subtropical Old World to N. Australia: Aldabra, Andaman Is., Angola, Assam, Bangladesh, Benin, Borneo, Botswana, Burkina, Cambodia, Central African Repu, Chad, China Southeast, Comoros, Congo, East Himalaya, Eritrea, Ethiopia, Free State, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Hainan, India, Ivory Coast, Jawa, Kenya, KwaZulu-Natal, Laccadive Is., Lesser Sunda Is., Madagascar, Malawi, Malaya, Mali, Maluku, Mozambique, Myanmar, Namibia, Nepal, New Guinea, Nicobar Is., Niger, Nigeria, Northern Provinces, Northern Territory, Pakistan, Philippines, Queensland, Senegal, Sierra Leone, Socotra, Somalia, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, West Himalaya, Zambia, Zaïre, Zimbabwe as per POWO;
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Poaceae, Cyperaceae and Juncaceae Week: Cyperaceae- 05042013GS1 Cyperus for ID from Chakrata-GS41 : Attachments (3). 4 posts by 3 authors.
Cyperus species photographed from Chakrata area. Kindly help in ID.

I think Pycreus pumilus 



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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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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/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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Grass identification-4: 2 high res. images.
Habitat: Near water bodies/marshy area

Habit: Annual herb
Loc- Kota Rajasthan
Date- 31july 2022


CyperaceaeCyperus sp.


Pl. check https://efloraofindia.com/2011/02/23/cyperus/


Any habit image?
Pl. check with Cyperus pumilus L., as per images herein.

I am not sure.



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References:

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