some weeds and their pictures for identification and general ideas

1. IDENTIFICATION
OF WEED - 1
BY BISWAJIT
THANKS TO RAHUL , MAHENDRA , SUNIL , SWETA & CS PRATIKSHYA
COLLEGE OF AGRICULTURE , BHUBANESWAR, OUAT ,ODISHA

2. GRASS
❖ Node & internode present
❖ Stem round
❖ leaf alternate, phyllotaxy 180 degree
❖ fibrous root
❖ Generally poaceae family
SEDGE
❖ singe stem, no node ,internode
❖ stem triangular,hexagonal,
round(rare)
❖ leaf phyllotaxy 120 degree
❖ deeper root system

3. CRAB GRASS Poaceae
Digitaria sanguinalis
upland,annual, seed
clue for identification : 2 point
Digitaria ciliaris
upland,annual,seed
1 point

4. CROW FOOT GRASS (କାଉ ପାଦିଆ)
Dactyloctenium aegyptium POACEAE
annual, upland seed
may be 2,3,4,5,6,7 arms

5. Wild ragi
Eleusine indica POACEAE
upland,annual,seed

6. Jungle rice (ସାନ ସୁଁଆ)
Echinochloa colona / colonum POACEAE
resemblance with rice plant,,used as food by rural people,
annual,upland,seed

7. Finger weed
Chloris barbata POACEAE
upland, annual,seed

8. BERMUDA GRASS (ଦୁଁବ ଘାସ)
Cynodon dactylon POACEAE
upland,perennial,seeds,stem cut

9. BROWN NUT SEDGE (ମୁଁଥା)
Cyperus rotundus CYPERACEAE
upland,perennial,most problematic weed
clue- brown coloured flowers or infloresence

10. UMBRELLA SEDGE (ଝରା କୁଁଆଣିଆ)
Cyperus iria CYPERACEAE
upland & lowland paddy ,annual,seeds
clue - yellow coloured infloresence

11. Mullumbimby couch / keya bon
Cyperus brevifolius CYPERACEAE
upland,low land, perennial

12. LABANGI (ଲବଙ୍ଗୀ)
Ludwigia parviflora ORANGRACEAE
upland,lowland, annual

13. Liquorice weed/sweet broom weed/scoparia weed
Scoparia dulcis PLANTAGINACEAE / SCROPHULRIACEAE
upland,annual

14. KESADURA (କକଶଦୂରା)
Eclipta alba / prostata ASTERACEAE
upland,annual,seed,
used in preparation of bhringraj oil

15. GOAT WEED (ବିଲ କପାକଶୁଁଙ୍ଘା)
Ageratum conyzoides ASTERACEAE
upland,annual,
preparation of insecticide

16. KANASIRI(କାନଶିରି) COMMELINACEAE
Commelina benghalensis
Upland, annual,monocot,used as leafy vegetable,
Broad leaf weed,propagation by seed & stem
cutting
Violet colour flower
Cyanotis cucullata
Lowland
Blue colour flower

17. Ground cherry / balloon weed(କ ାକ ାକା ଳ)
Physalis minima SOLANACEAE
upland,annual,propagation by seeds,wind

18. Cinderella weed
Synedrella nodiflora ASTERACEAE
upland,annual

19. BHUIN MALLI (ଭୂ ଇ ମଲ୍ଲୀ)
Gomphrena celosioides AMARANTHACEAE
upland,annual,seed

20. WILD MUSTARD (ଅଣ କସାରିଷା) CAPPARIDACEAE
Cleome viscosa
Yellow flower, straight plant like mustard,
upland,annual,seed
Cleome rutidosperma
Purple flower, not straight,stem normaly nearer
to soil having no main axis, upland,annual,seed

21. Badi aonla (ବାଡି ଅଳା)
Phyllanthus niruri EUPHORBIACEAE
upland,annual,ephemeral (short lived), through out year,
root used for treatment of jundice

22. INDIAN ARVA
Aerva lanata AMARANTHACEAE
upland, annual, seeds, used for medicinal purpose

23. SPURGE
Euphorbia hirta EUPHORBIACEAE
upland, annual, seed , used for medicine