Bauhinia in Leguminosae has alternate leaves, entire, palmately veined, petiolate, petiolate and caducous. Flowers cluster on old stems or form racemes, which bloom before or at the same time as leaves; Calyx broadly campanulate; 5. The teeth are cracked, and the top of the curved teeth is blunt or round;

The two sides of the flower are symmetrical, and the upper three petals are smaller; Stamens 10, separated; The ovary has a stalk. The pods are flat, long and narrow, and the wings are narrow along the abdomen; Seeds flat, several. Bauhinia is a deciduous tree, which is often shrubby after cultivation. Leaves alternate, nearly round, sharp at the top, heart-shaped at the base, 6 ~ 14 cm long and 5 ~ 14 cm wide,

Hairless on both sides. Flowers first, leaves later, and 4 ~ 10 flowers clustered on the old branches; Bracteoles 2, broadly ovate; Rose-red flowers, length 1.5 ~ 1.3 cm, soft pedicels, length 0.6 ~ 1.5 cm. The pod is narrowly lanceolate, flat, 5 ~14cm long and1.3 ~1.5cm wide, and the wing is narrow along the abdominal seam and does not crack. 2 ~ 8 seeds, oblate, nearly black. The flowering period is from April to May.

Extended data

I. Use

Bauhinia flowers first and then leaves, with bright and lovely colors, are often planted in courtyards, buildings and lawns for ornamental purposes. Its bark stalk can also be used as medicine, which has the effect of detoxification and swelling reduction; Seeds can be used as pesticides to kill pests. It has the effects of clearing away heat and cooling blood, expelling wind and toxic materials, promoting blood circulation and dredging menstruation, and relieving swelling and pain. Can be used for treating rheumatic bone pain, traumatic injury, arthralgia due to wind-cold-dampness, amenorrhea, snake bite, blood gas disorder, rabies and other diseases. The wood grain is straight and thin, which can be used for furniture and architecture.

Second, the ornamental characteristics

In early spring, the leaves are open and the branches are covered with purple flowers, which are gorgeous and lovely. The leaves are heart-shaped, round and shiny, and the light and shadow cover each other, which is quite touching. It should be planted in the courtyard, in front of the building and on the edge of the lawn. Because the leaves have not been released when flowering, it is advisable to plant evergreen pine and cypress or light-colored objects in the foreground, such as in front of white walls or beside rocks?

Third, the origin of habit.

Bauhinia originated in China and distributed in western Hubei, southern Liaoning, Hebei, Shaanxi, Henan, Gansu, Guangdong, Yunnan, Sichuan and other provinces. Sex likes light and has certain cold tolerance. I like fertile and well-drained soil, but I can't stand floods. Strong ability to resist sprouting and pruning. ?

Fourth, the mode of reproduction.

Propagation by sowing, dividing plants, cutting and layering. Mainly sowing.