Present investigation aims to set some parameters for quality control of the crude drug obtained from Mikania micrantha Kunth, a traditionally used medicinal plant for several health conditions throughout the world. Different pharmacognostic parameters like foliar micromorphology, stem and petiole anatomy, xylem element characters, preliminary phytochemical screening, physical constants and UV fluorescence characters have been evaluated following the standard methods. The epidermal cells are irregular in shape and cell wall outline is wavy. The stomata are of anomocytic type. Stomatal index in lower epidermis is 14.48 which is higher than the stomatal index of upper epidermis (4.53). Palisade ratio is 2.47. Trichomes are of glandular and non-glandular types with more than one cell. Vessel elements are with oblique, simple perforation plate. Fibre is a typical libriform type. Tannins, saponins, flavonoids, reducing sugars, etc. have been detected in methanolic extract of the plant powder. Total ash content is 9.05%. In most of the cases findings have been confirmed with previous works on Asteraceae. Some diagnostic features have been identified here which can be employed for easy identification of M. micrantha in its fresh as well as dried form. This study will help in proper identification and in controlling the standard of the crude drug obtained from this ethnomedicinal plant.
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