The difference between nine-story pagoda and Schizonepeta tenuifolia: Schizonepeta tenuifolia is a plant of Schizonepeta in Labiatae. Nine-story tower, official name: basil. It is a basil plant in Labiatae. Luo, there are conical main roots and dense fibrous roots coming out of it. The stem is erect, obtuse with four edges, slightly grooved at the upper part, hairless at the base, puberulent at the upper part, green, often dyed red, and multi-branched. The leaves are ovoid to ovoid-oblong, 2.5-5cm long and 1-2.5cm wide, the apex is slightly blunt or acute, the base is gradually pointed, the edges are irregularly toothed or nearly entire, both sides are nearly hairless, the lower side has glandular points, the lateral veins are 3-4 pairs, the upper side is flat with the midvein, and the lower side is somewhat obvious; Petiole is slender, about 1.5 cm long, nearly flat, with narrow wings at the base and puberulent. Racemes are terminal on stems and branches, each part is puberulent, usually 10-20 cm long, and consist of many alternate cymes and 6 flowers. The lower cymes are far apart, up to 2 cm apart, and the upper cymes are close; Bracts are small, oblanceolate, 5-8 mm long, shorter than cymes, sharp at the top, tapering at the base, sessile, ciliated at the edge, usually colored; The pedicel is obvious, the flowering period is about 3mm, the fruit is slender, about 5mm long, and the apex is obviously bent downward. Calyx bell-shaped, 4 mm long, 3.5 mm wide, pubescent outside, sparsely pilose inside throat, calyx tube about 2 mm long, 5 calyx teeth, and 3 teeth on upper lip. The middle tooth is the widest, 2 mm long and 3 mm wide, nearly round and concave, with a short tip, and the edge extends down to the calyx tube. The side teeth are oval, with a length of 1.5 mm. The corolla is lavender, or the upper lip is white, the lower lip is purplish red, protruding from the calyx, about 6mm long, the outer lip is puberulent, the inner side is hairless, the crown tube is hidden, about 3mm long, the throat is somewhat enlarged, the crown brim is 2-lipped, the upper lip is wide, 3mm long, 4.5mm wide, 4-lobed, the lobes are nearly equal in length, nearly round, often wavy, and the lower lip is oblong, 3 long. 4. Stamens, separate, slightly beyond the corolla, inserted in the middle of corolla tube, with filiform filaments, dentate appendages at the base of filaments, which are puberulent, elliptic anthers and combined into one room. Style beyond stamens, apex equally 2-lobed. Disk flat-topped, 4-toothed, teeth not exceeding ovary.