The study of morphological and anatomical features of the herb astragalus glycyphyllus L.

Aim – to establish the morphological, anatomical and microdiagnostic features of the stem, leaf blade, calyx and corolla of Astragalus glycyphyllus in accordance with the regulatory documentation.

Material and methods. The object of the study was the herb Astragalus glycyphyllus harvested in the Kursk region in 2021 during the period of mass flowering of the plant. The State Pharmacopoeia XIV standard was used for macro- and microscopic analysis.

Results. The raw material of the licorice-leaved astragalus consists of non-woody leafy stems 20-25 cm long with flowers, whole and crushed leaves of a grayish-green color, parts of the stem and individual flowers of a greenish-yellow color. The microscopic analysis presented the stem of Astragalus glycyphyllus having a round-ribbed shape, covered on the outside with epidermis with straight-walled cells, with longitudinally wrinkled cuticle. Leaf cells have slightly sinuous walls with anomocytic stomata. The rachis in cross section has a triangular shape with small lateral outgrowths and anomocytic stomata. The epidermis of the rachis is pubescent with simple bicellular hairs with rough surface. Cells of the epidermis of the calyx from the prosenchymal form (in the tube of the calyx) to the parenchyma (in the pharynx, on the teeth of the calyx), anomocytic stomata. At the base of the corolla there are epidermal cells of a prosenchymal form, straight-walled with straight or beveled ends, in the limb of the corolla - epidermal cells of a prosenchymal form, straight-walled with a longitudinal wrinkled cuticle. The epidermis of the stem, leaves, rachis and calyx is pubescent with simple two-celled hairs on a short basal cell with a long terminal cell, with rough surface.

Conclusion. The macro- and microdiagnostic features of the herb Astragalus glycyphyllus were described to distinguish the raw material "Astragalus glycyphyllus herb".