Phylogeny of populations of Rhododendron pseudochrysanthum s.l. rooted at R. formosanum , R. hyperythrum based on BEAST analyses of cp- and nrDNAs. The numbers at nodes represent the posterior probabilities (>0.5). Symbols: Alishan Mountain Range (blank circle); Central Mountain Range (black circle); Sheishan Mountain Range (blank square); Yushan Mountain Range (black square). See Table 1 for the detailed information of populations.