Historical biogeography of the Angelica group (Apiaceae tribe Selineae) inferred from analyses of nrDNA and cpDNA sequences
Chen-Yang LIAO, Stephen R. DOWNIE, Yan YU, Xing-Jin HE
J Syst Evol . 2012, (3): 206 -217 .  DOI: 10.1111/j.1759-6831.2012.00182.x