Gogon sirish, albizia richardiana

Gogon sirish (albizia richardiana, family: leguminosae) is a large-sized fast growing deciduous tree with cylindrical stem, dichotomously divided branches and smooth whitish brown bark. The plant is one of the most spectacular trees of the tropical world. It is widely planted as an avenue tree in Dhaka, the capital city of Bangladesh. 
Other local names : Rajkoroi, Bahari koroi, Megh shirish.

Leaves are compound, bipinnate, rachis about 12 cm long, pinnae 8-14 pairs, each 4-7 cm long; leaflets 50-100 pairs per pinnae, sessile, feathery, linear-oblong, small. 

Flowers are sessile, small, greenish white, numerous, clustered on round head. Flower comes in the rainy season. 

Fruit is long, thin, flat, whitish brown, 9-13 cm long and 2-3 cm wide. Each fruit contains 8-12 seeds. The plant is propagated by seeds. 

The tree with nice canopy can be attained up to 30-40 meters high. For its royal beauty, it is planted in park, garden, open space and street side around the tropical world.

Wood i…

Keteli or Creeping thistle, cricus arvensis

Keteli or Creeping thistle (cricus arvensis, family:  asteraceae) is an erect perennial herb, attaining a height of 40-120 cm. It grows on cropland or on the edge of lands in Bangladesh. Its stem and leaves are covered with cobwebby hairs. Spiny leaves are simple, dented, unevenly wavy, sessile, usually 7-10 cm long and 1-3 cm wide. 

Flowers are small, pink, borne on head. Single flower is soft as a feather. Male and female flowers bloom on separate inflorescences. The infloresence bearing male flowers is round and the one bearing female flowers is oblong.

The fruit is an achene, having brown pappus and looking glaucous and glabrous. Mature seeds are cotton-like fiber which can spread far and wide. 

It is mostly found in the rural areas of the country. By the by, the flowering time of the plant is spring.

Shinduri bij or Achiote, bixa orellana

Shinduri bij or Achiote (bixa orellana, family: bixaceae) is an evergreen shrub or small tree with few branches and dense foliage. Dye extracted from seed is used to color ointment. Its original home is tropical America. Red Indians paint their body and lips by the color obtain from its seeds.

Shinny leaves are green, heart-shaped with pointed apex, veins and midribs are clear; 10-18 cm long and 6-12 cm wide, alternate, petiole, 5-7 cm long. 

Flowers are very attractive, showy, purple-white, 5 cm across, borne on upright terminal panicles, 7-12 cm long; sepals 5, petals 5, with many stamens. Flower blooms in Autumn-winter.

Fruits are also attractive. They are globose, 3-5 cm across, covered with soft reddish prickles. Seeds covered with a thick red pulp which yields a valuable dye. Leaf, root and seed are used in preventing fever, gonorrhea, jaundice, dysentery and urinary problem. 

The plant is propagated by seeds. In Bangladesh it is planted in gardens and parks for fruits and also …

Roti, Jequirity, abrus precatorius

Roti, kuch or Jequirity (abrus precatorius, family: fabaceae) is a deciduous creeping woody herb. It grows naturally on fallow lands and beside canals and ponds. Nowadays it has been rare in Bangladesh. 

Leaves are compound; leaflets 10-20 cm on a rachis, opposite, tastes sweet. Blades are oblong, midrib clearly visible. Flowers are small, pinkish white. Flowers bloom in summer.

Fruits are bean-like. When the bean dried up, it burst. Seeds are round, brilliant red but have black mark at the top. All the seeds are almost of the same weight and shape. The extensive creeper is propagated by seeds.

Other names: Rotti, Rottika, Lalkuch, Roktokuch, Rokta, Shonakuri, Churamoni, Tamrika, Shangushtha, Gunja.

Roots and leaves are used in diarrhea, dysentery and skin diseases. it quenches thirst and causes perspiration. The seeds are used in abortion. Goldsmiths of the Indian subcontinent have been using seeds for measuring gold for thousands of years. The Santals women make beautiful jewelry by …

Bottlebrush or Lemon bottlebrush, melaleuca citrina

Bottlebrush or Lemon bottlebrush (melaleuca citrina, family: myrtaceae) is a medium-sized evergreen tree with profuse branches, sometimes shrubby in nature and semi-deciduous or completely deciduous. It is famous for its beautiful drooping branches and brilliant red 'bottlebrush'-like flowers. 

Leaves are narrow, lanceolate, alternate, about 3-6 cm long and 1 cm wide, without pedicel, green or silvery green. Flowers are small and bloom on spike inflorescence. Stamens are dark red, numerous and bigger than petals. Flower appears round the year. Tiny fruits contain numerous seeds.

Propagation is by air layering and seeds. As decorative plant it is planted in the park and gardens in Bangladesh.

If crushed, leaves emit a kind of aroma that scented like lemon. That's why the species name of the plant is 'citrina'.

The leafy and gorgeous flowering tree is a must-planted tree in Indian subcontinent's parks and gardens as well as tropical gardens of the planet. By the…

Bon tamak, Wild tobacco, nicotiana plumbaginifolia

Bon tamak or Wild tobacco (nicotiana plumbaginifolia, family: solanaceae) is an erect herb with branches attaining a height of 60-70 cm. There are many branches below rather than the top.

Leaves look like tobacco (nicotiana tabacum) but smaller than that. Leaves are green in color, ovate-oblong or lanceolate-oblong, 25-30 cm long, hairy, viscose.

Flowers are white with light pink shade, corolla tubular, sepals 5, petals 5. Flower grows as single from leaf axil. Flower blooms round the year. The fruits are covered with 10 permanent veins. Seeds are small, black in color, upper part wrinkled. 

The hairy perennial plant is a medicinal one. Leaf, stem and seed are used in allergy, phlegm, asthma, rheumatism, worm and louse infection and eye disease.

They grows here and there, specially in sugarcane, corn and sesame fields and on the village street as weed in Bangladesh.

Dudhia or Shet kerui, dentella repens

Dudhia or Shet kerui (dentella repens, family: rubiaceae) is an annual herb with soft slender stem. It creeps along the ground and spreads around. Leaves are entire, thick and juicy, elliptic but pointed at both ends, 1 cm long. 
Other local names : Shadaphuli, Shada jabri, Bhuipat.

Funnel-shaped flowers are solitary, small, nearly sessile, petals 5-lobed, 1 cm long, absolute white in color. Flowers bloom in the rainy season. 

It is grown as weed on fallow land and at the edge of water bodies. The plant helps to prevent erosion of land. By the by, the plant's species name `repens' means spreading or creeping.