Related Clues:

• Indigo dye source
• Indigo plant
• Indigo source
• Dye-yielding plant
• Dyeing plant
• Indigo product
• Source of indigo
• Shrub of the genus Indigofera
• Blue dye source
• Indigo-yielding shrub
• Dyestuff
• Dye plant
• Deep blue dye
• Shrub yielding a blue dye
• Blue dyestuff