It is a ruderal weed in New South Wales, although it is not weedy in all places where it is cultivated or has naturalized.
22.
It is thought to be a ruderal species, producing many tiny seeds that spread about and sprout up in disturbed habitat in a weedlike manner.
23.
It grows, however, preferably in grasslands and roadsides often as a weed in cultivated fields, and also in xerophile and ruderal habitats.
24.
It is found commonly in islands and in coastal areas, although it sometimes occurs inland in neglected and unmanaged plantations as well as in ruderal environments.
25.
Species of " Craspedia " are found in a wide range of habitats from coastal to alpine and are generally plants of open areas, sometimes ruderal.
26.
Many plant species of the " Conyza " genus are ruderal species and some have been found to be resistant to the herbicide glyphosate, in some cases.
27.
At the same time, the soil disturbance created by turning it over can lead to the establishment of early successional communities of r-selected and other ruderal plant species.
28.
The pioneering plants are physiologically adapted to withstand the problems of high salt contents in the air and soil, and are good examples of stress tolerators, as well as having some ruderal characteristics.
29.
In addition, some ruderal invasive species may have such a competitive advantage over the native species that they, too, may permanently prevent a disturbed area from returning to its original state despite natural topsoil.
30.
In cases of " disturbance " or change to a landscape, a " ruderal species " can increase in cover and compete with other native plants, threatening the diversity of a community.
