Besides temperature, precipitation–related factors are also common dominant factors influencing alpine plants distribution. For alpine plants, especially subnival species, water resources mainly consist of snowmelt and precipitation (Jonas et al., 2008). During the warm growing season, it is rare to experience temperature limitations, and precipitation may become the primary limiting factor (Wang et al., 2020). The examined species, except Elsholtzia eriostachya, are distributed in the subnival belt, the scree below the snow cover, characterized by colder temperatures that render them more vulnerable to temperature constraints, and precipitation is not the dominant factor. For Elsholtzia eriostachya, which is primarily distributed in lower-altitude grasslands, temperature limitations are less of a concern. Instead, precipitation of the warmest quarter (Bio8) exerts a greater influence on this species.