On this cultivated tropical species of Tabebuia (Family Bignoniaceae), growing in Michoacán, Mexico, the grayish-white, blister-like lenticels can be seen on the fibrous, light brown bark on the trunk. On this cultivated tropical species of Tabebuia (Family Bignoniaceae), growing in Michoacán, Mexico, the grayish-white, blister-like lenticels can be seen on the fibrous, light brown bark on the trunk.