The flora is mainly North Temperate Distribution-type ( about 44% of 118 genera), next are Cosmopolitan Type ( 21%) and Pantropic Type ( 14%). 它的种子植物区系成份以北温带分布类型为主(占118属的44%),其次是世界分布类型(21%)和泛热带分布类型(14%)。
There has 10 types and 10 variational types in families, mainly is pantropic distribution type, northern temperate zone distribution type, and world distribution type. 科级水平上,共有10个类型10个变型,泛热带分布、北温带分布、世界分布类型较多。