金丝桃科，又称藤黄科、山竹子科，共有27属1090种，为湿生植物，高从10公分到30公分左右。叶子通常呈现卵状，花单出且腋生。一般来说，该种植物都生长在湿地，水田。

山竹子科或藤黄科这一名字在克朗奎斯特分类法中被分为藤黄科（Clusiaceae）下的藤黄亚科（Clusioideae） 广义的金丝桃科的学名基于书带木属(Clusia)而命名为 Clusiaceae，在APG中被命名为 Hypericaceae，另外还新分出藤黄科 Clusiaceae。

The Clusiaceae or Guttiferae Juss. (1789) (nom. alt. et cons. = alternative and valid name) are a family of plants formerly including about 37 genera and 1610 species of trees and shrubs, often with milky sap and fruits or capsules for seeds. It is primarily tropical. More so than many plant families, it shows large variation in plant morphology (for example, three to 10, fused or unfused petals, and many other traits). According to the APG III, this family belongs to the order Malpighiales. The APG III system reduced the circumscription of this family to just 14 genera and about 595 species. Previous circumscriptions have often included the family Hypericaceae as a subfamily within Clusiaceae.