Bombax ceiba L.
Scientific Name: Bombax ceiba L.
Family: Malvaceae
Common Name: Silk Cotton
Hindi Name: सेमल
Description: Tall trees, trunk usually unbranched up to considerable height. Bark grey, covered with hard small conical prickles. usually disappearing with age. Petiole 10-30 cm long, pulvinate at the base; stipules triangular, 5-10 mm x 4 mm with hairy margin, caducous. Leaflets 5-7, glabrous, entire, elliptic-lanceolate, acuminate, attenuate at base, more or less leathery, unequal, 5-20 cm x 2-8 cm; petiolule 1-3 cm long. Inflorescence many fascicles of 1-4 flowers borne, at or near the end of branches. Flowers large, showy, red (occasionally yellow or white); pedicel thick, 2-2.5 cm long. Calyx 3-lobed (rarely 2-lobed), cup-shaped, 3.5-4 cm long, smooth outside, densely silky within. Petals twisted in bud, stellate tomentose outside, sparcely pubescent inside, elliptic-oblong, usually recurved, 8-11 cm x 4-5 cm. Stamens c. 75, united at base in 6 phalanges, each of 11-15 stamens, the inner-most phalange surrounding the pistil is composed of 15 stamens of which 5-innermost are the largest and forked; filaments 3.5-6 cm long, pink, somewhat tomentose, flattened at base; anthers long, afterward twisted, violet. Ovary conical, green, covered with silky hairs, 0.5-1.2 cm long; style simple, 5.9-6.5 cm long; stigmas 5, filiform. 5-6 mm long. Capsule 10-12.5 cm long; oblong, woody, 5 valved, profusely to finely tomentose. Seeds brown, smooth, obovid, 6 mm long, embeded in silky white wool.
Economic Importance:
The white fluffy fibres are carded into thread and woven into textiles in Nepal and India. In North India, the fibres are also used in pillows.
Medicinal Importance:
Bombax ceiba bark exudates are also taken orally to treat worms and diarrhoea
Seeds and roots of Bombax ceiba were used by traditional practitioners and religious healers of Bangladesh in the treatment of leprosy
Cultural Importance:
It is said to be the tree of infernal region, and is called the tree of Yama (Lord of Hell).
The wood is not used as fuel by tribals in Rajasthan as they think it will bring bad luck to them.
Reference:
https://commons.wikimedia.org/wiki/File:Bombax_ceiba_-_Cotton_tree_-_Shimul_Flower_(2).jpg
https://commons.wikimedia.org/wiki/File:Bombax_ceiba_18zz.jpg
http://efloras.org/florataxon.aspx?flora_id=5&taxon_id=242420835
http://www.svc.ac.in/SVC_MAIN/Societies/EcoClub/Trees/Bombax%20ceiba.pdf
https://www.doc-developpement-durable.org/file/Culture/Arbres-Bois-de-Rapport-Reforestation/FICHES_ARBRES/Bombax%20ceiba/Myths-traditions%20and%20fate%20of%20multipurpose%20Bombax%20ceiba.pdf