Althaea officinalis Linn. is equated as botanical source of Unani drug ‘Gul Khatmi’. This plant species is attributed for various medicinal properties and its every morphological part yields mucilage, â asparagin, betaine, starch and sugar. The present study is carried out on the pharmacognostical standardization of Althaea officinalis Linn. (Flower) including Thin- Layer Chromatographic profile which leads to develop quality standards for the drug.