| 1. | Twoleaf nightshades are ruderal species, colonizing newly disturbed lands.
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| 2. | It is a ruderal species, usually found in waste places or disturbed habitats.
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| 3. | Very often they grow in dry, saline or disturbed ( ruderal ) sites.
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| 4. | These occur in a variety of weedy and ruderal species native to steppes and deserts.
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| 5. | Some of the species also invade ruderal sites or occur as weeds in cultivated fields.
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| 6. | Nowadays it is quite common in roadsides and ruderal habitats, even in urban areas.
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| 7. | Some of them are ruderal species.
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| 8. | The speed of erosion along the glacial till cliffs prohibits colonisation of anything but sparse ruderal vegetation.
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| 9. | It colonizes ruderal sites along transport routes and can become dominant in habitats disturbed by human activity.
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| 10. | From context, it seems much more likely to be a ruderal species of some annual plant.
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