Medicinal Plants of Bangladesh
Medicinal Plants Database of Bangladesh includes the authentic Taxonomic Information, Vernacular/Bangla Name, Tribal and English Name, Family, Description and Photograph of the Plants, Chemical Constituents, Uses and Distribution of the species in Bangladesh. MPBD also contain dictionary of Botanical and Pharmacological terms.
Bengali/Vernacular Name: Dumbla, Parespipal, Polaopipal, Gajasundhi, Paresh, Pakor, Ban Kapas.
English Name: Portia Tree, Umberlla Tree, Indian Tulip Tree, False Rosewood.
Description of the Plant:
A medium-sized evergreen tree. Leaves cordate, acuminate, 15-20 cm, entire, dark green, petiole 3-10 cm long. Flowers yellow with purple base, axillary, solitary or in 2 together on slender 2-7 cm long pedicels; corolla 5-7.5 cm diam,. Fruit a capsule, 2.5 cm diam., depressedly globose, 5-valved.
The bark, leaves, flowers and fruit are useful in cutaneous affections such as scabies, psoriasis, ringworm and eczema. Yellow juice of the peduncles and fruits is useful in sprains, bruises and all cutaneous diseases. Decoction of the bark is given internally in chronic dysentery. Oil prepared by boiling the ground bark in coconut oil is applied in psoriasis and scabies. The ground leaves and contents of the capsule applied externally in eczema and ring worms. A compound oil of the bark and capsule is beneficial in cases of urethritis and gonorrhoea. Bark, roots and fruits are also used in dysentery, cholera and haemorrhoides. The seeds possess purgative properties.
EtOH extract showed significant antihepatotoxic activity in rats. (+)-Gossypol isolated from the plant showed antifertility activity (Ghani, 2003).
Fruits contain thespesin and herbacetin. Heartwood, bark, fruits and flowers contain (+)-gossypol and calycopterin. Seeds yield fatty oil composed of esters of palmitic, stearic, oleic and linoleic acids. A rare flavonoid quercetin-7-O-rhamno-glucoside has been isolated from the ethanolic extract of the plant (Ghani, 2003). Populneol identified as monobenzyl ether of γ-resacetophenone and gossypol have also been isolated from flowers (Rastogi & Mehrotra, 1993).
Meritime forests of Cox’s Bazar, Sundarbans, Chittagong and occasionally, planted else where.