加拿大一枝黄花（学名：Solidago canadensis），又名黄莺、米兰、幸福花，为菊科一枝黄花属多年生草本植物。原产北美,现在中国及欧洲的许多地方成为入侵植物。

Solidago canadensis (known as Canada goldenrod or Canadian goldenrod) is an herbaceous perennial plant of the family Asteraceae native to northeastern and north-central North America but established as an invasive plant in other parts of the continent and in other countries as well. It is often grown as an ornamental in flower gardens