Dhitaki Dhataki consists of flowers of Woodfordia fruticosa (Linn.) Kurz. (Fam. Lythraceae) : much branched, semi deciduous, undershrub or shrub, 1-3 m high, rarely upto 3 m, also cultivated in gardens.
Sanskrit : Bahupuspi, Timrapushpi, Vahnijvili
Assamese : Dhaiphool
Bengali : Dhaiphul
English : Fire flame bush
Gujrati : Dhavadi, Dhavani
Hindi : Dhai, Dhava
Kannada : Dhataki, Tamrapushpi
Kashmiri : Kath
Malayalam : Tattiripuvu, Tatire
Marathi : Dhayati, Dhavati
Oriya : Dhaiphula, Dhatuki
Punjabi : Davi, Phul Dhava
Tamil : Kattati, Kattathi., Kattattipoo
Telugu : Aarl Puruvu
Urdu : —
Flower, about 1.2 cm long, occurs as single or in bunches of 2-15, calyx 1.0-1.6 cm long, ridged and glabrous, bright red when fresh but fades on drying, with ampanulate base and oblique apex having 6 triangular and acute teeth, each tooth being, 2-2.5 mm long, 6, very minute accessory sepals attached outside at the juncture of calyx tooth and deeper in colour, petals 6, attached inside the mouth of calyx-tube, shightly longer than calyx tooth, alternating with calyx-tooth pale rose or whitish, thin, papery, lanceolate, acuminate, stamens 12, united at the base, about 1.5-2 cm long, filament filiform, curved at the apex, keeping anthers inside calyx-tube , anthers dorsifixed brown, almost rounded or broadly ovate, carpels 2, united, ovary superior, style filiform, longe, than ovary and stamens, taste, astringent.
Transverse section of sepal shows, single layered cuticularised epidermis, provided with both glandular and covering trichomes ;glandular trichomes, multicellular, long, consisting of a stalk and a globose, thin-walled, multicellular head, covering trichomes, unicellular thick-walled broad at base and pointed at the apex, ground tissue consisting of thin-walled, parenchymatous cells surface view of petal shows thin-walled, parenchymatous cells, provided with very few sparsely distributed covering trichomes, transverse section of filament shows, epidermis consisting of single layered tangentially elongated cells, covered with a very thick-cuticle, ground tissue consisting of thin walled parenchymatous cells with intercellular spaces, surrounding a central. vascular cylinder of spirally thickened vessels, transverse section of anther shows, single layered epidermis, covered with cuticle followed by several layers of thickened cells, surrounding both the pollen-sacs having numerous pollen grains, pollen grains roughly tetrahedral with three pores, measuring 12-16 µ approximately , central region consisting of thin-walled cells emboding vascular bundles.
CONSTITUENTS – Tannin and glucoside.
PROPERTIES AND ACTION
Rasa : Katu, Kashiya
Guna : Laghu
Virya : Shita(Cold)
Vipaka : Katu
Karma : Grihi, Vishaghna, Garbhasthipana, Kriminut, Sandhiniya.
IMPORTANT FORMULATIONS – Brihat Gangidhara Churna
THERAPEUTIC USES – Atisira, Raktapitta, Trishni, Vrana, Visarpa
DOSE – 3-6 g. of drug in powder form.