Kushum or Ceylon oak (Schleichera oleosa, family: Sapindaceae) is a large-sized deciduous tree with spreading canopy and huge trunk, attaining a height up to 40 m. The diameter of the trunk can be up to 2 meters. Bark is grey and smooth. The leaves fall at the end of winter and new leaves come in spring. The leaves are surprisingly red.
Other names: Joyna, Lakkha, Gum tree, Honey tree.
This giant tree can be easily recognized by shiny red leaves. The fruits look a lot like Lotkon and are called by this name somewhere. It can be seen scattered in Chittagong and Chittagong Hill Tracts including the northern part of the country. It is originated in the Southeast region of Asia, especially in India, Sri Lanka and Myanmar.
Leaves are compound, sessile; leaflets elliptic-obovate, 4-20 cm long and 3-9 cm wide, opposite. The extraordinary young leaves are brilliant red in color. These are seen several times a year.
Raceme inflorescence 6-15 cm long. Flowers are greenish yellow, without petals. Flowering occurs Feb-March.
Fruits broadly ovoid to globose, sometimes bilobed, 2-5 cm long, single or 2-seeded. Fruits are edible.
As an ornamental tree it is planted beside avenue, in park, garden and botanical garden in Bangladesh. Oil is extracted from its seeds and it is used in rheumatism, skin diseases and headache and for hair growth. The Santals use its bark for back pain and waist pain. It is also used to light lamps. Its timber is valuable and used to make industrial and agricultural tools. Wood is the finest coal. Bark is used for dyeing clothes. Lac bug is cultivated in the plant somewhere.
Synonym: Schleichera trijuga
Til or Sesame ( Sesamum indicum , family: Pedaliaceae) is an annual herb with hollow stem and branches attaining a height of 50 to 100 cm. Sesame or Til seed is one of the oldest oil-seed crops o f t h e w o r l d. The plant is originated in Africa. It is cultivated as crop throughout the tropical world. Leaves are opposite, broad lanceolate, dark green, 4- 14 cm long with an entire margin . Flower is hairy, white or light pink, borne on leaf axil; 3-5 cm long with a four-lobed mouth. In Bangladesh, i t blooms generally in April-May. Sesame fruit is a rectangular capsule, 2-7 cm long, covered with tiny soft hair . Tiler khaja, a type of sweetened food made from sesame seed is very popular in Bangladesh. Propagation of the plant is caused by seeds. Seeds are usually off-white in c o l o r. Sesame is energizing, carminative and diuretic. It increases breast milk and sperms in male. It has been found useful in dyspepsia a
Shimul or Red silk-cotton ( Bombax ceiba , family: Malvaceae) is one of the most common trees that found in Bangladesh. This deciduous straight tall tree with thorny trunk and spreading crown is also found in tropical regions of Asia. In Bangladesh, the tree is planted in parks and on highways and beside national monuments for its gorgeous fire-red flowers. It can reach a height up to 60 m. Common names: Shimul, Red silk-cotton, Red cotton tree. Leaves are large, spreading, glabrous, digitate, leaflets lanceolate, entire, 10-15 cm long; petiole is up to 20 cm long. It blooms in spring (March-April). Flowers red, numerous, appearing when the tree is bare of leaves, stamens numerous arranged in five outer bundles and one middle bundle. Fruit capsules, woody valves. 10-13 cm in length. Seeds smooth, black or grey embedded in long white wool. Oh! the flame of the forest! Young plant is used in dysentery, cough, plethora, malnutrition and sexu
Jongli badam or Bastard poon tree ( Sterculia foetida , family: Sterculuaceae) is a large deciduous tree, up to 20 m in height, with branches arranged in whorls and spreading horizontally. Trunk is robust and straight. There are eye-like glands on the grey-colored bark. The tree has some resembles with Shimul . The children are in the womb! Leaves are digitately compound, leaflets 5-8, crowded at the end of branches, elliptic-lanceolate, tip elongated, acuminate, 10-18 cm long and 4-5 cm wide, petiole is very long, about 20 cm, though the length of leaflets are very short, almost sessile. Flowers are red-yellow or light purple, borne on a axillary panicles. Sepals 5. Flowers bloom is the end of winter or in spring. Although the flowers are beautiful but those have a very unpleasant odour. For this reason, the species have been named foetida