cosmos atrosanguineus, the chocolate cosmos, is a species of "cosmos", native to mexico. it has often been claimed that it is extinct in the wild; however it is "quite abundant" in mexico. the species was introduced into cultivation in 1885, when the british seed company thompson & morgan first listed it in their seed catalogue. its dark red to brownish red flowers have a scent resembling chocolate, which is one reason for its popularity as a cultivated plant.