Dhutra or Thorn apple (Datura metel, family: Solanaceae) is an an erect and stout herb with branches, attaining a height 1-1.5 m. The stem is hollow, green with strong odor. It is native to Bangladesh as well as Indian sub-continent, East African area and some Oceanic islands. In Bangladesh it grows everywhere and planted as an ornamental plant.
Leaves are simple, alternate, ovate, glabrous, 7-15 cm long and 5 cm wide, apex acute. Petiole 5-7 cm long. Fragrant flowers are solitary, single or double, large, greenish-white, funnel-shaped, bisexual, sepals 5, petals 5. Flower blooms mainly in summer.
Fruit is globose, pale green and spiny. The plant is propagated by seeds.
Common names: Dhatura, Dhutra, Thorn apple, Devil's trumpet, Cornucopia.
A variety of datura metel is also found in Bangladesh─Black datura (datura metel fastuosa) with double or triple corolla. Flowers are deep purple in color.
Buddho narikel or Buddha coconut ( Pterygota alata , family: Sterculiaceae) is a large erect tree with branches, reaching up to 50 m in height. Trunk is huge and stout. Bark is smooth and grey in color. The deciduous mighty tree is found in the hilly forests of Chittagong and Chittagong Hill Tracts and Sylhet of Bangladesh. The tree is also found in South India, Sikkim and Andaman Islands. In Bangladesh it is planted in parks and botanical gardens as an ornamental plant. Leaves are dark green, big, cordate, glabrous, 10-25 cm long and 7-20 cm wide, alternate; long-petioled: 10-14 cm long. Midrib and veins are clearly visible. Flowers are reddish inside, outside brownish yellow, scented, petals 5. It produces flowers in spring. Fruit is big, round, hard, dehiscent, dark brown in color. Seeds are winged, numerous. Fruit pulp tastes almost like Coconut. The native plant is propagated by seeds. Seed is edible too. It can be taken after frying. A
Guloncho or Heart-leaved moonseed ( Tinospora cordifolia , family: Menispermaceae) is a deciduous creeper with hard and long stem, climbing other trees or fences. Bark on the stem is as thin as paper. Aerial roots come out of the stem when the plant grows older. The plant is found everywhere in Bangladesh except southern part. It is also native to South and Southeast Asia. Common names: Heart-leaved moonseed, Guduchi, Giloy, Guloncho, Guroncho, Padma guloncho. Leaves are simple, green, alternate, cordate, 6-15 cm long and 5-13 cm wide. Inflorescence, growing from the axil of leaflet branches, bears yellow flowers. Male and female flowers bloom separately. Sepals 6, arranged in two rows, petal 6, pistils 3. Fruit is a drupe, brilliant red when ripe. This attractive fruit is inedible to human. What an extensive climber! Tinospora cordifolia is used in weakness, tastelessness, rheumatis
Lal shonail or Pink shower ( Cassia javanica , family: Fabaceae) is a medium-sized deciduous tree with knotted and shortened trunk, attaining a height of 12-16 m. Bark is grey. Young shoots are silky. Its spreading branches sometimes almost touch the ground towards the peripherry. It is an ideal tree for planting in a large garden. It is found in the hilly forests of Sylhet and Chattogram in Bangladesh. As a beautiful ornamental tree, it is planted in parks, botanical gardens, gardens and roadsides in the country. It is also found in various tropical countries of Asia. At the beginning of summer, the canopy of the tree is covered with flowers in such a way that it looks as if a pink fountain is waiting to fall. In order to get colorful colors in summer, you have to plant this tree in the garden with Jarul , Krishnochura , Shonalu and Konokchura . Leaves are spectacular. These are compound, 12-24; leaflets elliptic-oblong, 2.5-4.5 cm and 2-3.5 cm wide. Flowers are scented, pink