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12 887895 Rosularia sempervivum (M. Bieb.) A. Berger [12 887895 Rosularia sempervivum (M. Bieb.) A. Berger]
V.L. Komarov (Komorov), Fl. URSS, vol. 9 : p. 125, t. 7, fig. 3 (1934-1964)
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