Recently, staff of the Hubei Saiwudang *** Nature Reserve discovered several plants of Primula odontocalyx by the river in Zhaizigou, Xiaochuan Village. Identification confirmed that the plant is a Near Threatened species listed in the IUCN Red List of Threatened Species.

　　It is understood that Primula odontocalyx is a plant of the genus Primula in the family Primulaceae. It is a perennial dwarf herb with weak rhizomes. It is mainly distributed in northwestern Sichuan and northwestern Hubei, and has ornamental and medicinal value.

　　The Hubei Saiwudang *** Nature Reserve is located between the Qinling Mountains and the Daba Mountains, with a forest coverage rate of 95.88%. It is an important pre-reservoir water conservation area for the Middle Route of the South-to-North Water Diversion Project. The reserve contains abundant rare and endangered wild animal and plant resources and preserves intact primary forest vegetation. It is home to 1,752 species of vascular plants in 837 genera and 185 families, including 15 species of wild plants under national key protection.