This member of the Apocynaceae family was given this name by Robert Everard Woodson Jr. in 1933. It is endemic to the State of Rio de Janeiro in Brazil, growing in a rich soil with quite some water and some to lots of sun. The caudex can grow to two centimetres in diameter, the entire plant from two to 4,5 metres in height. The flowers are pink to red with a yellow throat. Cultivars have white, yellow and even striped flowers.. The genera is named after H. John Mandeville, 1773-1861, an English diplomat in Argentina.
The species name after Henry Frederick Conrad Sander,1847-1920, a British horticulturist and collector from Hertfordshire, who brought the plant back from Brazil.

