|Serratifolia, also known as Guayacan polvillo or yellow poui tree, is an ascending to spreading, deciduous shrub or medium-sized tree. Leaves are oblong-lance-shaped, mid-green in color. Dense panicles of funnel-shaped yellow flowers with 5 crimped lobes are produced. In general, Tabebuia makes an excellent shade, lawn, or street tree, or border plant. Well suited to the coastal garden, this plant is tolerant of salt spray. Flowers are spring flowers are bell-shaped and yellow. Grow where soil is moist and fertile in full sun. Prune after flowering if tree needs shaping.