橐吾（学名：Ligularia sibirica）是菊科橐吾属的植物。

多年生草本，茎直立，有细条棱，无毛，基部为残叶的纤维所围裹；卵状心脏形叶子，先端钝或稍尖，边缘有细锯齿，基生叶有长柄，茎生叶柄短而抱茎；头状花序多数排列成长总状，外缘舌状花鲜黄色，中央管状花为黄色。

Ligularia sibirica is the type species for the genus Ligularia. It is a 0.3-1.3 m tall perennial herbaceous plant, native to fens and damp grassy meadows in Siberia, Central and Eastern Europe. Once fairly common, it has disappeared from many places in Europe, owing to drainage of wetlands and competition from other plants invading its natural habitats; when growing in shade plants do not flower or set seed very well and seed germination is greatly reduced. This species is sometimes grown in gardens for its large leaves and tall spike like arrangement of yellow daisy like flowers.