• noun
• synonym
• antonym

• Rubia cordifolia (noun)
  1. perennial East Indian creeping or climbing herb used for dye in the orient
• Rubia tinctorum (noun)
  1. eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin
• genus Rubia (noun)
  1. type genus of the Rubiaceae; Old World herbs and subshrubs grown for their medicinal properties and for dye substances extracted from their roots
• More