Weed Classification in Sri Lanka

1. Weed Classification
RM.NIKZAAD
(Readings BSc.in Agricultural Resource Management and Technology),
Faculty of Agriculture,
University of Ruhuna - Sri Lanka

2. 01.Life cycle - Annuals
 cyperus rotundus  Vernonia cinerea

3. Binnials
 Daucus carota

4. Perennials
 Elytrigia repens

5. 02.Morphology – Broad leaves -
Grass
 Sorghum
halepense
 Eleucine indica

6. sedges
 Cyperus

7. Ferns
 Salvinia molesta  Marsilea
quadrifolia

8. 03.Growth habit – Erect type
 Lantana camara  Ludwigia
octovalvis

9. Prostrate types
 Mimosa pudica  Commelina
diffusa

10. Vinery/climbers types
 Mikania scandens  Ipomoea triloba

11. 04.Habitat
 Hydrophyte
 -Salvinia molesta

12. Mesophytes
 -Ternestial –
Eupatorrium
odoratum
 -Epiphytes-
Loranthus

13. 05.Woodiness
 Woody
 Non Woody