Centaurium macranthum (Hook. & Arn.) B.L. Rob. Centaurium macranthum (Hook. & Arn.) B.L. Rob. in Proc. Amer. Acad. Arts 45(17): 396. 1910 sec. Sosa 1995=Erythraea macrantha Hook. & Arn., Bot. Beechey Voy.: 438. 1841 syn. sec. ???