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Broussonetia papyrifera (paper mulberry)
B. papyrifera is a highly invasive species, becoming weedy and difficult to remove after its introduction. Its timber does not have high commercial...
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Bromus diandrus (great brome)
In Australia, B. diandrus competes strongly with wheat. A density of 100 plants/m² of B. diandrus decreases wheat yield by 30% (Cooper and...
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Bromus madritensis (compact brome)
Bromus species are contaminants of grain and wool, they damage animal hides and can host serious cereal diseases. In pastures, the seeds penetrate...
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Bromus rigidus (ripgut brome)
B. rigidus is directly causing serious problems in cereal crops, with yield losses varying from 40 to 80% in Algeria and Morocco (Hamal, 1993). In...
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Bromus rubens (red brome)
In areas with low herbaceous competition, B. rubens can be invasive and, once established, competitive with other grasses. The awns and florets are...
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Bromus sterilis (barren brome)
B. sterilis is a serious weed problem of autumn-sown cereals (Mortimer et al., 1993). In Morocco, five species of Bromus (B. rigidus, B. rubens, B....
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Carduus nutans (nodding thistle)
It is considered a serious pasture weed in parts of New Zealand, Australia, USA, Canada and Argentina. It can also create some problems in arable...
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Senna occidentalis (coffee senna)
The invasiveness of S. occidentalis is widely recognized. For example, in Northern Territory, Australia, it is a class B declared weed, i.e. spread...
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Celastrus orbiculatus (Asiatic bittersweet)
As a fast growing, twining vine, C. orbiculatus is a threat to other plants through constriction of the woody stems it climbs upon leading to...
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Centaurea diffusa (diffuse knapweed)
Diffuse knapweed survives in a wide range of soil and environmental conditions, and produces large numbers of viable seeds that are widely...
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