dablink|有关韩国一种客运铁路列车，请参看无穷花号。

Althaea frutex Hort. ex Mill.

木槿（学名：Hibiscus syriacus），是一种很常见的庭园灌木花种；属于锦葵目锦葵科植物，原生地很可能在亚洲。

木槿是韩国的国花，又名无穷花。 同时也是马来西亚的国花，在当地又名大红花。

Hibiscus syriacus is a species of flowering plant in the family Malvaceae, native to much of Asia (though not, as Linnaeus thought, Syria, in spite of the name he gave it). Common names include rose of Sharon (especially in North America), Syrian ketmia or rose mallow (United Kingdom) and St Joseph's rod (Italy).