Lianqiancao, also known as Huoxuedan, Touguxiao, Jieguxiao, Horseshoe Grass, and Desmodium Grass, has the effects of diuresis, choleretic, anti-ulcer, dissolving stones, and antibacterial, and can be used to treat blood stasis. Abdominal pain, bruises, edema, difficulty urinating, damp-heat jaundice, etc.

Lianqiancao, a Chinese medicine name, also known as Huoxuedan, Touguxiao, Jieguxiao, Horseshoe grass, and Money grass. It is the dried aerial part of the Lamiaceae plant Glechoma longituba (Nakai) Kupr. Harvest from spring to autumn, remove impurities and dry in the sun.

The plant form is a creeping perennial herb with slender stems, square columnar, 10 to 30 cm long. The lower part often takes root prostrately, while the upper part rises obliquely or is nearly upright. Only the young parts are sparsely covered with long hairs. The leaves are opposite, with long stalks; the leaves are herbaceous, heart-shaped or nearly kidney-shaped, with crenulate edges and fine hairs.

The flowers are blue or purple, with short stalks, usually solitary in the leaf axils, rarely in clusters of 2 or 3; the calyx is tubular, with 15 longitudinal veins, villous, and the length of the calyx lobes is about The calyx tube is equal or short, with an awn-like tip; the corolla has two types: long tube and short tube, with some hairs on the outside. The lower part of the coronal tube is cylindrical, and the upper part is obviously enlarged and bell-shaped, the eaves are two-lipped, and the upper lip is upright. , 2-lobed, lower lip elongated, obliquely spread, 3-lobed, middle lobe extra large, apex concave; stamens 8, hidden. The small nuts are oblong and ovate, dark brown, and are hidden in the persistent calyx. The flowering period is from April to May, and the fruiting period is from May to June.

Pharmacological research: This product has diuretic, choleretic, anti-ulcer, and stone-dissolving effects; it also has antibacterial effects on Staphylococcus aureus and typhoid fever, Freund's dysentery, Soong's dysentery, and Pseudomonas aeruginosa. All have inhibitory effects.

The clinical application dosage is 15 to 30 grams, and the fresh product is 30 to 60 grams; for external use, take an appropriate amount and pound it for application. It is used to treat blood stasis, abdominal pain, bruises, edema, difficulty urinating, damp-heat jaundice, vaginal discharge, carbuncles, sores, poisonous snake bites, etc.