Description

Blistering Varnish Tree is a genus of trees in the subfamily Anacardioideae of the cashew and sumac family Anacardiaceae. They grow naturally in India, Bangladesh and Indo-China. This is a poisonous tree if contacted it would irritate skin chemically and result in irreversible skin damage. Smoke from burning this wood is dangerously disabling

Characteristics:

Blistering Varnish Tree is a large evergreen tree, up to 30 m high, bark 20-25 mm thick, surface yellowish-grey, mottled with green and white, smooth, warty. Outer bark is 1-2 mm thick, dead, corky, inner bark thick, brittle, inner layers fibrous, Blaze is red, and the tree exudes scanty, colourless sap which becomes black on drying. Sap of the tree is acrid and can cause variable responses to skin. Rangeing from blackening, blistering, to contact demititis, to even sever allergic reactions and body anaphylaxis. Branchlets are brown velvety. Leaves are simple, alternate, clustered at the tips of branchlets. Leaf-stalks are 1.5-5 cm long, stout, broadened at base, brown velvety. Leaf-blade is 15-70 x 7-25 cm, inverted-lanceshaped, suddenly broad above the middle, base wedge-shaped or acute, tip long-pointed, margin entire, hairless above, densely golden brown velvety below, leathery. Lateral nerves are many, parallel, prominent. Flowers are small, polygamous, dull white, in terminal rusty velvety panicles. Calyx is cup-shaped, shortly 5-toothed. Petals are 5, cohering at the base and with the edge of the disc, hairy within. Disc lining the calyx tube, obscure in bisexual flowers. Stamens are 5, inserted outside the disc. Fruit is a drupe. Blistering Varnish Tree is endemic to Western Ghats. Flowering: October-March.

Medicinal Uses:

In Ayurveda, the plant is believed to be helpful in treatment of inflammation, arthritis, hemorrhoids, obesity, tumor, cancer, and skin diseases.