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Showing posts from May, 2019

Rubber bot or Indian rubber, ficus elastica

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Rubber bot or Indian rubber (ficus elastica, family: moraceae) is a medium or large evergreen tree with aerial prop roots grow from its branches. The fig tree with milky latex in its leaves and shoots can get a height of more than 30 meters. The trunk is smooth, black-colored and has very tiny whitish spots.


This tree is well-known as an ornamental plant. In Bangladesh, it is found on roadside area or the edge of forest and in parks and gardens. The beautiful tree is native to South and Southeast Asia.


Leaves are spectacular, simple, big, leathery, deep green, sometimes deep purplish, shiny and smooth, elliptic-ovate, 12-30 cm long and 5-12 cm wide, petioled, alternate, acuminate at the top.


Florets remain inside the fruit or fig which cannot be seen from outside. Fruiting occurs in the late spring. Fruits develop in the nodes of  the Fruits. They usually round, sometimes slender in shape. Mature fruits are yellow or red in color. The plant is propagated by seeds and cuttings.

The wow …

Panikola or Duck lettuce, ottelia alismoides

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Panikola or Duck lettuce (ottelia alismoides, family: hydrocharitaceae) is an annual submerged herb grows in the paddy fields and at the edge of water bodies. The short-stemmed aquatic plant prefers shallow water bodies and can survive in strong light. Its roots along with rhizome are ingrained in soil. It is found in the tropical and subtropical Asia, Africa and Australia.
Other Bangla names: Ram korola, Kaobali, Torukola, Shyamkola, Kuchkolai
Leaves grow up with the rise in water level. Size and shape of the leaves are different. They are usually oblong-cordate, slightly clear, fragile, edge undulate. 

The size of the petiole depends on the level of water too. It generally gets a length of 10-20 cm. Peduncle comes out from the rhizome. 

The flower is covered with green spathes in early stage. Mature flower stands erectly on the water. Flower is white or light violet. Sepals 3, petals 3. Flowering occurs in autumn and late autumn in Bangladesh.

Fruit is a capsule, linear. It is edible…

Buddho narikel or Buddha coconut, pterygota alata

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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 kind of oil is extracted from seed. It i…