Fig. 1

Daily mean air temperature (± SE) of early-flowering (black square) (April 27–28, 2013) and mid-flowering times (white square) (May 7–8, 2013) of Megaleranthis saniculifolia on Mt. Sobaeksan. Since the temperatures at the two sites (NE and NW) were almost identical, temperature data for the two sites were pooled into each of the flowering time (early and mid). Mean air temperatures in early-flowering and mid-flowering times were 15.8 ± 0.67 °C and 27.0 ± 0.83 °C, respectively