Kutaja

Wrightia tinctoria, the pala indigo plant or dyer's oleander, is a small to medium deciduous shrub or tree found in India, South-East Asia and Australia. It grows 3 to 15 metres tall, with smooth yellowish-brown bark that gives a milky-white latex, and white flowers pollinated by insects. In Ayurveda the plant is called shwetha kutaja and its seeds indrayava or indrajava. The page says there is no high-quality clinical evidence that it is safe or has any beneficial effect. The leaves, flowers, fruits and roots yield a glucoside that makes a blue, indigo-like dye, and about 100 to 200 kilograms of leaves are needed for one kilogram of dye. The flowers, leaves, fruits and seeds are edible. The white wood, called aale mara or ivory-wood, is carved for the lacquered toys of Channapatna.