Family - Indian Society of Weed Science

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Habit : Stem : Leaves : Flowers : Fruit : 120 Perennial stoloniferous herb. Slender, triquetrous, obscurely winged. Linear, flat, light green. Cyperus haspan L. Common Name : Haspan flatsedge Family : Cyperaceae Inflorescence compound; spikelets oblong, clustered in groups. Nutlets broadly ovate, trigonous, cream yellow. Weed ID Manual
Habit: Stem: Leaves: Flowers: Fruits: Cyperus iria L. Common Name : Ricefield flatsedge Family : Cyperaceae An annual sedge, sometimes behaving as a perennial. 8 to 60 cm high. The culms are tufted, triangular, glabrous, green and 0.6-3.0 mm thick. The roots are numerous, short and yellowish-red. Linear-lanceolate, usually all shorter than the culm, 1-8 mm wide, flat, and scabrid on the margin and major ribs; leaf sheaths are green to reddish-brown, membraneous and envelope the culm at the base. Inflorescence is simple or compound, usually open, 1-20 cm long and 1-20 cm wide, with groups of spikes which are either sessile or on 0.5-15.0 cm long peduncles (rays). Spikelets are erect-spreading, crowded, 6-24-flowered, 2-13 mm long, 1.5-2.0 mm wide, golden to yellowishgreen. Nutlet, 1.0-1.5 mm long, 0.6-0.7 mm wide, obovate, triangular in cross section, dark-brown to almost black; the surface is almost smooth. Weed ID Manual 121
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Citation : Naidu, V.S.G.R. 2012, Ha
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Man has selected his food crops fro
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Leaf shapes Cordate Deltoid Ellipti
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Abelmoschus ficulneus (L.) Wight &
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Cyanotis cristata (Linn.) D. Don 11
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Mimosa invisa C. Mart. 229 Mimosa p
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ACANTHACEAE Andrographis paniculata
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Cleome monophylla L. 87 Cleome visc
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Phaseolus trilobus (L.) Aiton & auc
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Echinochloa colona (L.) Link. 139 E
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Aculeate : Covered in prickles. Acu
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Denticulate : Finely dentate. Depre
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Mucro : A stiff or sharp, short pro
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Rosette : A tuft of leaves or other
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Common Name : Native rosella Family
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Habit : Stem : Leaves : Flowers : F
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Habit: Stem: Leaves: Flowers: Fruit
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Habit: Perennia vine. Stem: Hirsute
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Habit: Culm: Leaves: Flowers: Fruit
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Habit : Fronds : A rootless, aquati
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Habit : Stem : Leaves : Flowers : S
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Family - Indian Society of Weed Science

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