Deciduous trees, more than 20 meters high, with light brown or dark gray bark, rough, often split into thin slices and fall off; Branchlets are cylindrical, glabrous, the branches of the year are light green, and the perennial branches are brown; The lenticels are prominent and nearly round; Winter buds are light purple-green, conical and covered with scales.

Leaves are papery or thinly leathery, alternate, oval or oblong, thin oval or nearly lanceolate, long12-15cm, wide 5-6cm, as thin as 8cm, short and sharp at the top, nearly round at the base, slightly wavy at the edge, hairless at the top, dark green, dark purple after drying, and light green and sparse below. Petiole is purple-green, long 1.5-2 cm, slightly flat or slightly grooved at the top and rounded at the bottom.

Inflorescence umbrella or short raceme, the total pedicel is 3-5 cm long, and it is long and sparse when it is young, and then it is hairless; Flower unisexuality; Male peanuts are on the old branches with fallen leaves, and the pedicel is 5 mm long; The lobes of calyx are very good; Petals caducous, long and narrow, shorter than filaments; Stamens 5- 10, born around fleshy disk.

Female flowers are born on young branches with leaves, with bracteoles at the base and pedicels1-2 mm long; Lobes of calyx nearly entire; Petals are scaly, about 65438 0.5 mm long, disc-shaped and fleshy; Ovary inferior, connate with receptacle, glabrous or slightly rough at base. Drupe is oblong-ovoid or obovoid, ovoid-sparse, slightly flat, 1- 1.2 cm long, 6 mm wide, 4-5 mm thick, purple-green when young, dark blue when mature, and usually 3-4 pieces after dark brown; Pedicels are 3-4 mm long and the total pedicels are 3-5 cm long. The seed coat is hard, bony and slightly flat, with 5-7 longitudinal grooves. The flowering period is in late April and the fruiting period is in September.

A flowery orchid tree

The tree is 9-20 meters high and grows upright, with a conical crown. With the growth of tree age, the crown gradually becomes Zhang Kaicheng oval. The branches are horizontal, reddish brown and smooth. Leaves entire, alternate, obovoid or oval. In summer, the leaves are bright dark green. In autumn, the leaves gradually turn yellow, orange and orange until they turn bright red. It blooms in May, the flowers are small, white, slightly light green, dioecious, bearing fruit in spring and summer, and the drupe is dark blue and rectangular, and matures in September -65438+ 10.