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SPREADING DAYFLOWER Commelina diffusa Burm. f. COMDI, monocot, Commelinaceae Found in: upland Establishment method: DS > WS Growth habit: creeping and prostrate; up to 1 m Moisture: wet, not flooded Competitiveness: at least moderate Seed contaminant: yes Cultural control: early continuous flooding; hand and mechanical weeding difficult because pieces may re-root Reported resistance: synthetic auxins (USA) Life cycle: P Seed wt: 11.5 Method(s) of reproduction: stolons Flowering time: earlier than rice Dormancy: innate and induced by high temperatures Flower: blue Elevation: up to 2,000 m Light: shaded Notes: more common than C. benghalensis; somewhat tolerant of herbicides; very persistent in fields Reported in: BAN, BHU, CHN, IDO, IND, KOR, LAO, MAL, MYA, NEP, PHI, SRI, THA, VIE (16) Young plant, (17) flower, (18) mature plant 16 17 24 25 18
19 20 21 (19) Young plant, (20) flower, (21) mature plant 26 FALSE DAISY Eclipta prostrata L. ECLAL, dicot, Asteraceae Found in: lowland, upland Establishment method: DS > WS Growth habit: herb; prostrate or semierect, much-branched; up to 0.9 m Moisture: wet to moist Competitiveness: low to moderate Seed contaminant: yes Cultural control: early removal or cutting; high fertility Reported resistance: none Life cycle: A Seed wt: 0.4 Method(s) of reproduction: seeds Maturity time: 42 d Dormancy: none; light required for germination Flower: white Elevation: up to 2,000 m Light: sunny Notes: no emergence from depth; C 3 plant; saline-tolerant; often in field margins; somewhat tolerant of butachlor Reported in: BAN, BHU, CAM, CHN, IDO, IND, KOR, LAO, MAL, MYA, NEP, PAK, PHI, SRI, THA, VIE (19) Young plant, (20) flower, (21) mature plant 27
Page 2 and 3: A Practical Field Guide to Weeds of
Page 4 and 5: GRASS WEEDS 52-81 Cynodon dactylon
Page 6 and 7: Acknowledgments The authors thank t
Page 8 and 9: BROADLEAF WEEDS SOLA PITH PLANT Aes
Page 10 and 11: TROPIC AGERATUM; GOAT WEED Ageratum
Page 12 and 13: SPINY AMARANTH Amaranthus spinosus
Page 16 and 17: WATER HYACINTH Eichhornia crassipes
Page 18 and 19: CREEPING WATER PRIMROSE Ludwigia ad
Page 20 and 21: WATER CLOVER Marsilea minuta L. MAR
Page 22 and 23: MONOCHORIA Monochoria vaginalis (Bu
Page 24 and 25: MARSH-PEPPER SMARTWEED, WATER PEPPE
Page 26 and 27: GOOSEWEED Sphenoclea zeylanica Gaer
Page 28 and 29: GRASS WEEDS BERMUDA GRASS Cynodon d
Page 30 and 31: CRAB GRASS Digitaria ciliaris (Retz
Page 32 and 33: 60 57 58 BARNYARDGRASS Echinochloa
Page 34 and 35: 64 60 61 GOOSEGRASS Eleusine indica
Page 36 and 37: 68 65 66 WRINKLED GRASS, SARAMOLLAG
Page 38 and 39: 72 68 69 CHINESE SPRANGLETOP, RED S
Page 40 and 41: 72 73 76 KNOTGRASS Paspalum distich
Page 42 and 43: 76 77 80 78 ITCHGRASS Rottboellia c
Page 44 and 45: 82 84 81 RICE FLAT SEDGE Cyperus ir
Page 46 and 47: 88 87 88 FORKED FRINGERUSH Fimbrist
Page 48 and 49: 92 94 93 BULRUSH Scirpus juncoides
Page 50 and 51: Appendix A. Weed species synonyms*
Page 53 and 54: Appendix F. Common names of weeds i
Page 55 and 56: Appendix J. Common names of weeds i
Page 57 and 58: Appendix N. Common names of weeds i
Page 59 and 60: Appendix Q continued. Bayer code BA

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