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Plumbago is a genus of tropical herbs and shrubs belonging to the family Plumbaginaceae, also known as the leadwort family. These plants are primarily valued as garden ornamentals, featuring spikes of showy flowers.123

Some notable species include:
* Plumbago europaea, or common leadwort, which has lead-blue flowers and a sap that is irritating and caustic.13
* Plumbago zeylanica, known as doctorbush, whose roots and leaves have been used medicinally, particularly for skin diseases.3

The active compound extracted from Plumbago roots is a yellow pigment called plumbagin.3

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