Learn to care for and grow Myrocarpus frondosus (incienso, Balsamo). Myrocarpus frondosus (also known as incienso and Balsamo) is a plant in the family Fabaceae. It is hardy in zones 10-12. It is a medium growing plant. It is perennial. The sun requirement is full shade. The soil requirement is sand, clay and loam. The soil moisture requirement is moist.