The efficacy and function of large leaf grass

With the development of society and the close international exchanges, most people who study medicine have been seriously influenced by Western medicine, and fewer and fewer people are studying Chinese medicine, which has resulted in less and less understanding of Chinese medicine. Let’s talk about the effects and functions of the traditional Chinese medicine broadleaf herb.

[Source] Medicinal material source: the whole herb of Passerine japonica, a plant of the Primulaceae family.

[Original form] Perennial herb. The rhizome is short and thick, with many fibrous roots. The stems are usually clustered, erect, thick and juicy, 30-50cm high, cylindrical, scattered with sparse black glandular dots, and usually unbranched. Leaves are opposite, with the 2 pairs at the stem end shortly spaced, often nearly whorled; short-petioled or nearly sessile, with middle petiole 6-20mm long; leaf blade elliptic, broadly elliptic to diamond-ovate, 6-18cm long, 3-10(-12.5)cm wide, with acute or short acuminate apex, broadly cuneate base, dark green above, pinkish green below, glabrous, densely covered with black glandular dots on both sides, 4-6 pairs of lateral veins, slightly raised below, reticular veins slender and inconspicuous; 1-2 pairs of leaves near stem base degenerate into scales. Inflorescence is a terminal raceme shortened to a nearly capitate shape; bracts are ovate-lanceolate to lanceolate, 1-1.5cm long, densely covered with black glandular dots; pedicels are extremely short or up to 6mm long in the lower part of the inflorescence; calyx is 6-12mm long, 5-lobed nearly to the base, lobes are oblong-lanceolate, 2-3.5mm wide, densely covered with black glandular dots; corolla is yellow, 1.2-1.9cm long, the basal connate part is 4-5mm long, 5-lobed, lobes are oblong or oblong-lanceolate, obtuse or slightly pointed at the apex, with black glandular dots; stamens are 5, the lower part of the filament forms a tube about 3mm high, and the separated part is 3-4mm long; anthers are ovate; ovary is ovoid, and the style is about 7mm long. The capsule is nearly spherical, 3-4(-5)mm in diameter, and often has black glandular dots. The flowering period is May and the fruiting period is July.

[Habitat distribution] Ecological environment: Grown in dense forests and wetlands beside valley streams, the upper limit of vertical distribution can reach 800m above sea level.

【Nature and flavor】 Light; neutral

【Functions and indications】 Clears away heat and dampness; reduces swelling and detoxifies. Mainly used for jaundice, edema, diarrhea, trauma, disease, furunculosis

[Usage and Dosage] For oral use: decoction, 10-15g. For external use: take appropriate amount and mash fresh product for application.

【Excerpt】 Chinese Materia Medica

Above we introduced what large-leaf herb is, its efficacy and functions. We know that large-leaf herb can not only improve immunity, but also plays an indispensable role in certain diseases.