夷茱萸科只有一属—夷茱萸属（Griselinia）共7种，都是灌木或乔木，分布在南美洲和新西兰。

1981年的克朗奎斯特分类法将其列入山茱萸科，1998年根据基因亲缘关系分类的APG 分类法将本科单独列为一个新科，在伞形目下。

本科植物为常绿植物，叶背面颜色浅，花小，无花瓣；果实为小浆果。

都是4-20米高的大灌木或乔木：

都是1-5米高的小灌木：

Griselinia is a genus of seven species of shrubs and trees, with a highly disjunct distribution native to New Zealand and South America. It is a classic example of the Antarctic flora. It is the sole genus in the family Griseliniaceae; in the past it was often placed in Cornaceae but differs from that in many features. The leaves are evergreen, smooth and glossy above, often paler below. The flowers are very small, with five sepals and stamens and a single stigma. Petals 2–3 mm long. However, the female flower of G.lucida has no petals. The fruit is a small purple oval berry 5–10 mm long.