Geographic distribution and floristic characteristics of threatened plants in the Changbai Mountain

Twenty-six threatened species listed in the China Plant Red Data Book were found in the Changbai Mountain. These species were acquired and analyzed on the area type of species and floristic Characteristics. Major results are as follows: distribution of these species mostly belongs to the temperate zone property and is mainly composed of north temperate nature; and threatened plants were distributed among a wider vertical range with stronger adaptation. Above circumstances are quite benefit to rescue and protect these plants and conservation strategies are suggested.