Chaenostoma cordatum, also known by the names
bacopa or
ornamental bacopa (not to be confused with the genus
Bacopa), is one of 52 species in the genus
Chaenostoma (Scrophulariaceae), and is best known in its cultivated forms. It originated in Southern Africa, and is a tender perennial forming a ground cover, but often used in hanging baskets. Small dark green heart shaped leaves and small round five-petaled white flowers at the branch tips can be found..
(Wikipedia)