Thespesia Populnea, or more commonly know as Portia Tree, is a tree shrub with green foliage and yellow flowers of the genus Thespesia. It has a rapid growth rate and a height of 30 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is year round, blooms during spring and is somewhat tolerant of shade. Thespesia Populnea or Portia Tree's floral region is North America US Lower 48, Hawaii, Puerto Rico and The Virgin Islands, specifically in the states of Florida and Hawaii.