Teak is a large decidous tree up to 40 m (131 ft) tall with grey to greyish-brown branches, known for its high quality wood. Its leaves are ovate-elliptic to ovate, 15–45 cm (5.9–17.7 in) long by 8–23 cm (3.1–9.1 in) wide, and are held on robust petioles which are 2–4 cm (0.8–1.6 in) long. Leaf margins  are entire.

Malayalam - thekku

English - teak

Teak leave is also widely used in Asia for the treatment of diabetes, inflammation, bronchitis, cancer, skin diseases, malaria and TBC