What kind of plant is this? What's the name of this plant? It has a single root system, a square stem, opposite leaves and small purple flowers.

Latin name: Ajuga? Pantanza Hands. -Maz

Kind of like an alias? : Sophora alopecuroides, Sophora alopecuroides, Sophora alopecuroides (Qujing, Yunnan), Sang Xue Grass (Qujing, Zhaotong, Yunnan)

Chinese name: Labiatae

Corradin name: Labiatae

Chinese name: Ajuga.

Perennial herb, spreading or creeping, producing one or more stems from roots. The stem base is usually leafless, 7-32 cm long, slender, slightly quadrangular, densely gray villous or woolly. Petiole 5 mm long or almost absent, grooved and narrow-winged, with villous back; The leaves are papery, black when dry, often reddish below, oblong-obovate or triangular-obovate, 65,438+0.5-3cm long, 0.8-65,438+0.8cm wide, blunt at the top, or round, or 3 blunt, wedge-shaped at the base, descending, with irregular sparse teeth or several entire edges, and ciliated and puberulent on both sides. Cymes have 4-8 flowers, which are inserted in almost all leaf axils; Pedicel absent or almost absent. Calyx is purplish red, funnel-shaped, 5-7 mm long, villous outside and hairless inside, with 10 veins, 5 calyx teeth, lanceolate or lanceolate triangle, half or longer than calyx, equal in length, villous and ciliate. Corolla rose, lavender, purplish red or purplish blue, tubular, straight, slightly knee-shaped at the base, 0.8- 1cm long, sparsely puberulent on the outside, with light-colored glandular spots, hairy rings near the inner base, and hairless or almost hairless on the rest. The crown is lip-shaped, the upper lip is short, upright and round, the top is slightly notched, and the lower lip is wide. Stamens 4, dimorphic, only slightly protruding from the front pair, filaments stout, usually glabrous or sparsely puberulent. Style slender, slightly curved, glabrous, beyond stamens, apex 2-lobed, lobes apiculate. Disk annular, lobes inconspicuous. Ovary 4-lobed glabrous. Nutlets are oblong, triangular and brown, with reticular wrinkles on the back and 1 fruit hilum on the abdomen, accounting for about 1/2 of the ventral surface. The flowering period is August-165438+ 10, and the fruiting period is about 65438+ 10.