Neolitsea cassia Neolitsea cassia Neolitsea cassia is a species of tree in the Lauraceae family. It is endemic to Sri Lanka. It is known as "dawulu kurundu - දවුල් කුරුදු" or "kudu dawula - කුඩු දවුල" in Sinhala. Bark - thick, smooth, gray; W- light, hard, pale orange. Montane and rain forest understory. Wood - panelling; leaves- mucilaginous extract used in preparation of local sweet called "aasmi" ; Bark,leaves- medicinal. Straight stem with greyish bark and short, slender branches. The leaf flush is smooth, silvery copper, drooping, crowded at the ends of branchlets, and turn bright green when mature. Leaves are lanceolate
Cassia fistula and the tree was depicted on a 20-rupee stamp. The golden rain tree is the national flower of Thailand; its yellow flowers symbolize Thai royalty. A 2006–2007 flower festival, the Royal Flora Ratchaphruek, was named after the tree, which is known in Thai as" ratchaphruek" (Thai: ราชพฤกษ์) and the blossoms commonly referred to as "dok koon" (Thai: ดอกคูน). "C. fistula" is also featured on a 2003 joint Canadian-Thai design for a 48-cent stamp, part of a series featuring national emblems. "Cassia acutifolia", the pudding-pipe tree, furnishes the cassia pods of commerce. In Laos, its blooming flowers known locally as "dok