The leaves of the naked capsule grow alternately in a single leaf, in the shape of heart, broad egg or kidney. They are 3-5cm long and 3-5cm wide. The upper leaves gradually become smaller, with sharp top. The two sides of the base are shaped like earlobes. The edge of the leaves has smaller round teeth, and the back has obvious reticulation. Generally, there are three main veins, and the petiole is about 3cm long, almost as long as the leaves. Grow on the stalk.
The base of the leaves of the capsule is heart-shaped. It is wider than that of the capsule, about 4-8cm long, between 4-10cm wide, and about 2-8cm long.
The naked capsule flower is a raceme growing on the upper end of the stem, and the leaves are opposite. The length is about 12 cm, and the length of the total stem can reach about cm. Naked capsule flowers are relatively small, bracts are also very small, oval growth, flowering in June to September, from midsummer to early autumn, and then flowers fall and fruit.
The flowers and leaves of the naked capsule of white bracts are opposite. There are bracts under the flowers. The bracts on the upper side of the inflorescence are smaller, but the bracts on the lower part are larger and white.
