Marsdenia is a genus of plants in the family Apocynaceae first described as a genus in 1810. It is named in honor of the plant collector and Secretary of the Admiralty, William Marsden. The plants are

Blepharodon is a genus of plant in the family Apocynaceae, first described as a genus in 1844. They are native primarily to South America, with one species extending into Central America and Mexico.