Cephalanthus occidentalis
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APG II Classification: Domain: Eukaryota • Regnum: Plantae • Clade: angiosperms • Clade: eudicots • Clade: core eudicots • Clade: asterids • Clade: euasterids I • Ordo: Gentianales • Familia: Rubiaceae • Genus: Cephalanthus • Species: Cephalanthus occidentalis L. (1753)