The Texas azalea (Rhododendron oblongifolium) belongs to Ericaceae (the Azalea family). It is a deciduous shrub that is native to eastern Texas, Louisiana, Arkansas and Oklahoma in the United States. This shrub grows in boggy areas near wooded streams and in sandy light soils in pine forests, and up to a height of 30-150 cm. The leaves are dull green, obovate, smooth or only slightly hairy above, and pale and hairy along the veins beneath. The white lightly fragrant, funnel-shaped flowers with white or pink styles bloom in spring to summer.