Barleria cristata, the Philippine violet, bluebell barleria or crested Philippine violet, is a plant species in the family Acanthaceae.It is native to a wide area ranging from Southern China to India and Myanmar.

Cultivated as an ornamental plant in villages and gardens, it has become naturalized in Hawaii, where it grows in dry habitats.

The flowers are about 5 cm long, funnel-shaped in violet, pink, or white color.

[citation needed] To ensure intake of this plant, for medicinal purposes, is safe and nontoxic, studies were conducted on mice and found no side effects or death with fixed amount of dosage: 250g/kg dosage.

In Telugu the flowers are called Decembaralu(plural), In Tamil it is known as December Poo.