A phylogenetic tree of Stellaria alsine and its relatives reconstructed using ITS sequences. Stals: S. alsine subsp. alsine. Staqu: S. aquatica. Stdiv: S. diversiflora. Stmed: S. media. Stmon: S. monosperma. Stnan: S. alsine subsp. nana. Stneg: S. neglecta. Bootstrap values are shown on the nodes. Branch length represents the average number of substitutions per site.