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塞罕坝植物区系中，以北温带科或广布全球但以（北）温带为分布中心的科为主；属划归５类１４种地理成分，温带成分占８８．４３％，热带成分占７．４４％，泛地中海成分占３．３１％，中国特有成分仅占０．８３％；与同纬度或近纬度地区相比，本区系热带科、属贫乏；本区系具有典型的北温带性质：温带或北温带科属为主；世界广布成分相对较多；特有现象不明显，间断分布错综复杂。
The Saihanba flora is dominated by the northern temperate family or the widespread northern (northern) temperate distribution center in the Saihanba flora. It belongs to 5 types of 14 geographical elements, accounting for 88.43% of the temperate elements and tropical elements Accounting for 7.44%, accounting for 3.31% of the Mediterranean, endemic to China accounting for only 0.83%; compared with the same latitude or near latitude, the tropical families of this area is poor; this area has a typical The north temperate nature: temperate or north temperate genus; the world is relatively broad composition; peculiar phenomenon is not obvious, intermittent distribution is complicated.