The leaves of Lagerstroemia speciosa are membranous, in the form of oblong or oblong lanceolate, rarely ovate. It is about 2-9 cm long and 1-4 cm wide. The top is acuminate and the base is broad wedge-shaped. The midvein is slightly depressed on the top and bulges on the bottom. There are 3-10 pairs of lateral veins with the top together.
The flowers of Lagerstroemia speciosa are small, dense, white or rose, panicle, about 5-15 cm long, with grayish brown hairs. Calyx 5-lobed, lobes triangular, 6 petals. The flowering period is from June to August.
The capsule of Lagerstroemia nanensis is oval, about 6-8 mm long, with 3-6 lobes. The fruit period is from July to October.
