Nepeta cataria L., also known as: Nepeta cataria, Nepeta cataria, Artemisia quadrilaterale, and pseudospermum, is a perennial plant of the Lamiaceae family and Nepeta genus. The stem is strong, lignified at the base, multi-branched, 40-150 cm high, nearly quadrangular at the base, blunt quadrangular at the upper part, shallowly grooved, and covered with white pubescence. Its dried stems, leaves and flower spikes are used medicinally. Fresh buds are best for calming children. The leaves of Schizonepeta are yellow-green, the stems are square and slightly purple, the cross section is yellow-white, and the ears are slightly black, purple-yellow-green. It has a mild taste, warm nature, non-toxic, and a clear and strong aroma. Nepeta is a diaphoretic and antipyretic drug. It is one of the commonly used Chinese herbal medicines. It can relieve phlegm, expel wind and cool blood. Treat influenza, headache, cold, heat, sweating, and vomiting.

Perennial plants. The stem is strong, lignified at the base, multi-branched, 40-150 cm high, nearly four prismatic at the base, the upper part is blunt and quadrangular, with shallow grooves, and is covered with white pubescent. The leaves are ovate to triangular and heart-shaped, 2.5-7 cm long and 2.1-4.7 cm wide, with blunt to sharp apex, heart-shaped to truncate base, coarsely crenulated or toothed edges, herbaceous, yellow-green above, covered with Very short hirsute, slightly whitish below, covered with pubescence but densely on the veins, 3-4 pairs of lateral veins, ascending obliquely, slightly sunken above, raised below; petiole 0.7-3 cm long, thin. The inflorescence is cyme-shaped, axillary in the lower part, and the upper part is composed of continuous or discontinuous, loose or extremely dense terminal branched panicles. The cymes are dichotomous branches; the bracts are leaf-shaped, or the upper part is variable. Small and lanceolate, the bracts and bracteoles are diamond-shaped and minute. The calyx is tubular when in flower, about 6 mm long and 1.2 mm in diameter. It is covered with white pubescence on the outside, and only the calyx teeth are sparsely bristly on the inside. The teeth are conical, 1.5-2 mm long, the back teeth are longer, and the calyx increases after flowering. It is in the shape of an urn, with very clear longitudinal ribs. The corolla is white with purple spots on the lower lip. It is covered with white pubescence on the outside and short pubescence on the inside at the throat. It is about 7.5 mm long. The crown tube is very thin, about 0.3 mm in diameter. It suddenly expands into a wide throat from the calyx tube. Eaves two-lipped, upper lip short, about 2 mm long, 3 mm wide, apex shallowly concave, lower lip 3-lobed, middle lobe nearly round, about 3 mm long, 4 mm wide, base heart-shaped, margins Coarse teeth, lateral lobes round and lobed. The stamens are hidden inside, the filaments are flat and hairless. Style linear, apex 2-lobed. The flower disk is cup-shaped with obvious lobes. Ovary hairless. The small nuts are oval, several triangular, gray-brown, about 1.7 mm long and 1 mm in diameter. The flowering period is from July to September, and the fruiting period is from September to October