Solidago canadensis L. is introduced virginly and initially as the flowers, and then the ease grows the field, become the weeds .
加拿大一枝黄花最初作为观赏花卉引进，后逸生野外，成为杂草。
Solidago canadensis L. is introduced virginly and initially as the flowers, and then the ease grows the field, become the weeds .
加拿大一枝黄花最初作为观赏花卉引进，后逸生野外，成为杂草。
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