Holostemma
Holostemma is a genus of flowering plants in the family Apocynaceae. The genus was first described in 1810. As presently constituted, the genus contains only one known species, Holostemma ada-kodien, native to southern Asia.
;formerly includedHolostemma chilense, syn of Cynanchum chilense Holostemma laeve, syn of Vincetoxicum laeve Holostemma pictum, syn of Graphistemma pictum Holostemma sinense, syn of ''Metaplexis hemsleyana''