Eustoma, a genus of three species in the family Gentianaceae, grows natively in warm regions of the Southern United States, Mexico, Caribbean and northern South America. They are herbaceous annuals, growing to 15 – 60 cm tall, with bluish green, slightly succulent leaves, and large funnel-shaped flowers growing on long straight stems, sometimes erect single stems, other times growing on branching stems that can rise to be three feet tall. The flowers can grow up to two inches across and can be found in a variety of colours. They have been found in all shades of pink, purple, white, and blue. In addition, some are bicolored and some are occasionally found in yellow or carmine-red.