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Paspalum scrobiculatum (ricegrass paspalum)
P. scrobiculata is a common weed in the tropics. It is listed as a noxious weed by USDA-APHIS (USDA-ARS, 2003) but is not widely considered to be...
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Geoffroea decorticans (Chilean palo verde)
In areas in its native range where G. decorticans has spread onto pastures, weed scientists recognize the species as a severe invasive weed. In...
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Thunbergia grandiflora (Bengal trumpet)
T. grandiflora is a woody vine included in the Global Compendium of Weeds and it is listed as a very aggressive weed impacting...
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Thlaspi arvense (field pennycress)
T. arvense is a weed of 30 crops in 45 countries (Holm et al., 1997), and is classified as a serious or principal weed in 12 (Holm et al., 1991). A....
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Raphanus raphanistrum (wild radish)
R. raphanistrum has been reported as a weed of 45 crops in 65 countries (Holm et al., 1997) and is classified as a serious weed in nine countries...
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Fimbristylis dichotoma (tall fringe rush)
F. dichotoma is an aggressive invader in favourable environments. It is most noted as a weed of paddy...
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Cyperus difformis (small-flowered nutsedge)
C. difformis is rated by Holm et al. (1977) to be a serious weed of rice in Australia, Italy, Japan, Madagascar, Taiwan and the Philippines, and a...
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Galium aparine (cleavers)
Holm et al. (1991) described G. aparine as a serious or principal weed in 10 countries. Worldwide it has been reported as a weed of 19 crops in 31.....
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Anagallis arvensis (scarlet pimpernel)
The low growth and small root system of A. arvensis suggest that it is not a very competitive weed in most crops, and this is supported by a number.....
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Cyperus iria (rice flatsedge)
C. iria is rated by Holm et al. (1977) as one of the three most important weeds of rice in Sri Lanka, India and the Philippines. It is a...
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