Bon tamak or Wild tobacco, Nicotiana plumbaginifolia

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


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 lea f 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.

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Tulsi or Sacred basil, Ocimum tenuiflorum

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Tulsi o r Sacred basil ( Ocimum tenuiflorum , family: Lamiaceae) is an odorous perennial herb or undershrub with many branches attaining a height of 1-1.5 m. Almost whole body of the plant is covered with hairs. Stem is woody, furrowed and quadrangular. Like many other herbs (Dhutra, Begun, Pepper) the plant can be purple. It is found everywhere in Bangladesh as a medicinal as well as sacred plant to Hindu community. It has spread across a huge global range, extending from the Arabian Peninsula to East Asia as well as Pacific Islands to Australia.  Other names: Kalo tulsi (Bang); Tulasi, Ajaka (Sans); Holy basil (Eng).  Leaves are strongly scented, green or purple, hairy, ovate-broadly elliptical, 2-5 cm long and 1-1.5 cm wide, opposite, irregularly dented, petiole 2-3 cm long.  Flowers are tiny, white or purplish, 3-8 on terminal inflorescence (12-25 cm long). Corolla bilabiate, petals 5, calyx divided into two parts, Stamens 4. It produces flower almost round the yea...
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