Lagerstroemia calyculata known as the "Guava Crape Myrtle" (Vietnamese: Bằng Lăng Ổi, Bằng Lăng Cườm; Thai: ตะแบก tabaek; Cambodian name: Khmer: ដើមស្រឡៅ, romanized: Srolao); the name is derived from its very characteristic mottled flaky bark.

It is a species of flowering plant in the family Lythraceae and found in Southeast Asia and Oceania.

[1] It is a medium-sized tree growing up to a height between 10 and 20 m (35 and 65 ft).

Like other species of the same genus, it is quite common as a decorative tree in the parks of Thailand owing to its beautiful bunches of pink flowers.

[2] Its wood has a low commercial value, which is why it thought to have maintained the forest structure in previously logged parts of Cat Tien National Park, where it may constitute >25% of tree counts.