The identifying characteristics of eight weed seeds of Bidens L. in compositae were described in this paper. These genera are B. pilosa, B. bipinnata, B. parviflora, B. biternata, B. frondosa, B. cernua, B. maximowicziana and B. tripartite.是什么意思_The identifying characteristics of eight weed seeds of Bidens L. in compositae were described in this paper. These genera are B. pilosa, B. bipinnata, B. parviflora, B. biternata, B. frondosa, B. cernua, B. maximowicziana and B. tripartite.在线翻译_英语_读音_用法_例句