Daguolu Yellow, a traditional Chinese medicine. It is the whole plant of the plant Lutou Guolu yellow in the Primulaceae family. It is distributed in Jiangxi, Zhejiang, Hubei, Hunan, Guangxi, Guizhou, Sichuan, Yunnan and other places. It has the effects of dispelling wind, clearing heat, and detoxification. It is commonly used for coughs with wind and heat, sore throat, and hot and toxic sores.
【Morphological characteristics of Daguolu Yellow】
Daguolu Yellow is an annual or perennial herb. The stem is usually clustered, zigzagging, and 10-30 cm tall. In damp habitats, the lower part of the stem often creeps, with roots growing on the nodes, and the upper part twists and rises, reaching a length of up to 60 cm, with a single or multiple branches, densely covered with multi-cellular hairs about 1-1.5 mm long.
The leaves are opposite; the petiole is 2-12 times shorter than the leaf blade, densely covered with soft hairs; the two pairs of leaves at the top of the stem are close together, densely clustered in a whorl, usually 1-2 times larger than the lower leaves, the leaf blade is ovate to elliptic-ovate, 1.5-8 cm long and 8-40 mm wide;
The apex is acute or slightly obtuse with a sudden pointed tip, the base is broad and wedge-shaped, both sides are covered with rough pubescence, and the midrib is slightly wider and obvious on the lower side. Inflorescences are terminal, nearly capitate, with many flowers; pedicels are 1-7 mm long, densely covered with soft hairs;
The calyx is split almost to the base, the lobes are lanceolate, and the back is covered with soft hairs; the corolla is yellow, 10-13 mm long, the basal fused part is about 3 mm long, the apex is 5-lobed, the lobes are inverted ovate, and there are transparent glandular spots;
There are 5 stamens, the filaments are fused at the base to form a tube, and separate at the upper part, the anthers are ovate-lanceolate, with ciliate edges; the pistil is up to 8 mm long, and the lower part and the apex of the ovary are hairy. The capsule is brown and has a diameter of 3.5-4 mm. Flowering period is from May to June, and fruiting period is from August to September.
【Growth environment of Daguolu Yellow】
Daguolu Yellow is the whole plant of the plant Lutou Guolu yellow in the Primulaceae family. It grows under broad-leaved forests, valley streams, and roadsides at an altitude of 600-2600m. It is distributed in Jiangxi, Zhejiang, Hubei, Hunan, Guangxi, Guizhou, Sichuan, Yunnan and other places.
Taste and nature: Daguolu Yellow has a mild taste and is neutral in nature. It belongs to the lung and stomach meridians.
Usage and dosage:
Internal use: decoction, 15-30g. External use: appropriate amount, apply fresh products; or decoct for washing.
【Pictures of Daguolu Yellow】
