1、 Leaf difference

The leaf of windbreak has a flat long petiole and a wide leaf sheath. The leaf is oval or oblong, 14 to 35 cm long and 6 to 8 cm wide. It has two or nearly three pinnate divisions

The leaves of Schizonepeta tenuifolia are ovate or triangular heart-shaped, about 2.5 to 7 cm long and about 2.1 to 4.7 cm wide. The apex is sharp, the base is heart-shaped or truncated, and the edge has coarse round teeth, which is herbaceous

2、 Flower difference

There are many Fangfeng compound umbels. The peduncle at the top is 2 to 5 cm long and the umbrella width is 3 to 5 cm long. There are 4 to 10 small flowers in the umbel, and the petals are obovate and white

The inflorescence of Schizonepeta tenuifolia is umbelliform, or forms a dense panicle of terminal branches. The bracts are leaflike, and the bracts are subulate and small. The Corolla is white, with purple spots on the lower lip, covered with white pubescence