BOTANICAL CHARACTERISTICS OF HOANG CAM (Scutellaria baicalensis Georgi) CULTIVATED IN BAC HA, LAO CAI

Tóm tắt

Hoang cam (Scutellaria baicalensis Georgi), has been used as a medicinal herb for over 2000 years in East Asian countries and is recorded in the Chinese Pharmacopoeia. Our study aimed to comprehensively describe the morphological and anatomical characteristics of Hoang camcultivated in Bac Ha, Lao Cai, contributing to the completion of species identification, reference, and providing data for implementing technical measures to increase the yield of medicinal herbs. The results showed that: Hoang camhas a tuberous root with few branches, young stems with four edges. Leaves are simple, opposite, lanceolate, with pinnate venation. Flowers are solitary, bisexual; corolla is purple, divided into two lips; 4 stamens, triangular anthers, superior ovary. Fruit is a schizocarp, with a persistent calyx. Seeds are oval, black. The root anatomy has a circular cross-section, with many layers of periderm covering the outside, secondary xylem, and abundant stone cells. The stem anatomy has a square cross-section, with convex corners, vascular bundles concentrated at the four convex corners, with sclerenchyma and thick tissue protecting the bundle apex, and abundant pith parenchyma. Leaf anatomy has a hairy epidermis, specialized parenchyma occupying a large area, and small vascular bundles.