Cyperus articulatus L., Sp. Pl. 44 1753. (Syn: Chlorocyperus articulatus (L.) Rikli; Chlorocyperus cordobensis Palla; Cyperus articulatus Benth. [Illegitimate]; Cyperus articulatus var. conglomeratus Britton; Cyperus articulatus var. erythrostachys Graebn.; Cyperus articulatus var. fistulosus Kük.; Cyperus articulatus f. longispiculosus Kük.; Cyperus articulatus var. multiflorus Kük.; Cyperus articulatus var. nodosus (Humb. & Bonpl. ex Willd.) Kük.; Cyperus autumnalis Pursh [Illegitimate]; Cyperus borbonicus Steud.; Cyperus cordobensis (Palla) Hicken; Cyperus corymbosus var. pangorei Rottb.; Cyperus corymbosus var. subnodosus (Nees & Meyen) Kük. ex Osten; Cyperus corymbosus var. subnodosus (Nees & Meyen) Kük.; Cyperus fistulosus Ehrenb. ex Boeckeler; Cyperus gymnos Schult.; Cyperus interceptus Steud.; Cyperus niloticus Forssk.; Cyperus nodosus Humb. & Bonpl. ex Willd.; Cyperus nodosus var. aphyllus Boeckeler; Cyperus nodosus var. subnodosus (Nees & Meyen) Boeckeler; Cyperus pertenuis Roxb.; Cyperus subarticulatus Nees & Meyen [Invalid]; Cyperus subnodosus Nees & Meyen; Papyrus pangorei Nees);
 

Perennial, 1-2 m. Stolons, e.g. 3 mm diam., covered by brown or reddish-brown scales, longer than internodes. Stem 4-8 mm diam., terete or obtusely trigonous, green or greyish green, “noded” by transversal internal tissue plates. Leaves reduced; sheaths to 40 cm, soft, yellowish-brown or often reddish, mouth oblique; blades of uppermost sheaths up to 30 mm. Inflorescence a compound anthelodium, 9-16 cm; bracts to 9-30 mm, upright, rigid; primary branches 7-15, up to 12 cm; secondary anthelodia 15-50 mm, with bracts to 8 mm, secondary branches up to 20 mm; cluster of spikes of 5-14 spreading spikes, globular or slightly elongated, greyish green or brown; spikes 5-25 x c.1.5 mm, slightly compressed, with 8-24 glumes, glume-like bract to 2 mm, acute, glume-like prophyll bi-nerved, base spongy; rachis c. 0.5 mm wide, internodes c. 0.8 mm, winged; glumes c. 3 mm, cymbiform, obtuse, mid-nerve area greenish, later pale yellow, with several nerves ending below apex, sides pale yellow, brown or reddish-brown, margins widely scarious. Nut c. 1.6 x 0.5 mm, narrowly obovoid, trigonous, sides concave, brown or silvery brown, glossy, finely reticulate and papillose.

Flowering and fruiting: March-April
Marshy areas
Pantropics
Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi)

 
 

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Images by (Anurag Sharma – Id by Santhan P & V.P.Prasad), (For more photos & complete details, click on the link), (inserted by Bhagyashri Ranade)

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Plant for ID xvii6 posts by 4 authors. Attachments (7).
Found in Bannerghatta Bangalore
June


Elaeocharis ?…


Cyperus articulatus L. , tall sedge near lake and river


Thank you all.

I will try and get better details of plant soon to confirm ID.

For now, Cyperus articulatus L. suggested by … 


Looks like Cyperus articulatus L., may be the inflorescence is not well-developed. So I need a specimen to confirm the identity.


 

  
 

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