Cyperus haspan

Cyperus haspan L., Sp. Pl. 45 1753. (Syn: Cyperus adenophorus Schrad. ex Nees .; Cyperus americanus (Boeckeler) Palla [Illegitimate]; Cyperus aphyllus Vahl; Cyperus autumnalis Vahl; Cyperus caespitosus Llanos [Illegitimate]; Cyperus cancellatus Ridl.; Cyperus cayennensis Link; Cyperus efoliatus Boeckeler; Cyperus gracilis Muhl. [Illegitimate]; Cyperus gramineus Roem. & Schult.; Cyperus graminifolius Poir.; Cyperus haspan var. adenophorus (Schrad. ex Nees) Kük. .........................; Cyperus hyemalis Pursh ex C.B.Clarke; Cyperus junceus Link; Cyperus juncoides Lam.; Cyperus laticulmis Spreng.; Cyperus leptos Schult.; Cyperus microcarpus Boeckeler; Cyperus muehlenbergii Spreng.; Cyperus nudus Kunth ..; Cyperus pedatus Nees; Cyperus planiculmis Steud.; Cyperus platyculmis R.Br.; Cyperus riparius Schrad. ex Nees [Illegitimate]; Cyperus stellatus Link [Illegitimate]; Cyperus triqueter Boeckeler; Cyperus tunicatus Roem. & Schult.; Cyperus vaginatus Link [Illegitimate]; Scirpus autumnalis Rottb. [Illegitimate]);

 Images by Surajit Koley, (For more photos & complete details, click on the link), (inserted by Bhagyashri Ranade)
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Erect, spaced, rhizomatous perennials; rhizome long, creeping; roots red-purple; culms 15-35 cm tall, triquetrous. Leaves few, basal, 2-10 x 0.2-0.5 cm, linear, apex acute, sometimes reduced to lanceolate appendage of sheaths; sheaths upto 5 cm long, reddish brown. Inflorescence compound, many-rayed, 4-9 cm across, ultimate branches ending in digitately arranged clusters of spikelets; leafy bracts 2-3, the longest upto 6 cm long. Spikelets 5-10 x 1-2 mm, linear-lanceolate, compressed. Glumes 1.5-2 x 0.5-1 mm, oblong-ovate, mucronulate, keeled. Stamens 2-3; connective bristly at top. Stigmas 3. Nut c. 0.5 x 0.5 mm, obovoid, trigonous, broadly stipitate, cream-yellow, verruculose.
Flowering and fruiting: Throughout the year
Along banks of streams, paddy fields and marshy areas
Pantropical

 
 
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Hooghly - Cyperus haspan L. : Attachments (10). 1 post by 1 author.      
 
  
 
 
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