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Friday, March 16, 2018

මොට්ටු තණ (Mottu thana) Cyperus kyllingia


Image source : Phytoimages.siu.edu

Image source : Flickr.com

Common name : Mottu thana

Scientific Name: Cyperus kyllingia

Family               : Cyperaceae

Life cycle          :  Annual


Morphological characteristics :

A smooth plant, with creeping underground stems

Leaves many, short; leaf sheaths  ,    thin, membranous, pale to purplish.

Flower stems often 3 to 18 inches high, ridged, soft, with three to four dark brown leafy bracts at the top
Spike 1 (rarely 2 to 3), ovoid to round, 1/4 inch in diameter; spikelets white, numerous, 1- to 2-flowered; flower scales membranous, strawlike.
Fruit: a nut, brown

Agricultural importance :             A weed in waste and grassy places

Propagation                    :             By seed and underground stems

Uses                               :             Occasionally used as a lawn grass in shady areas

Control methods            :


Deep and timely plowing to a depth of 25-30cm ; deep and frequent interrow treatments of the ground before closing of plants

Sowing of lucerne





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Thuththiri (තුත්තිරි) Chrysopogon aciculatus





Wel Penela (වැල් පෙනෙල) Cardiospermum halicacabum






Kadupahara (කඩු පහර) Crassocephalum crepidioides



Heen Undupiyaliya (හීන් උඳුපියලිය) Desmodium triflorum


 

Nidikumba (නිදි කුම්බා) Mimosa pudica



Babila (බැබිල) Sida rhombifolia




බැල තණ (Bala thana) Eleusine indica


Image source: www.discoverlife.org