独脚金属（学名：Striga）是玄参科下的一个属，为矮小草本植物。该属共有约20种，分布于东半球热带和亚热带地区。

Striga, commonly known as witchweed or witchers weed, is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. It is in the family Orobanchaceae. Some species are serious pathogens of crop cereals, with the greatest effects being in savanna agriculture in Africa. It also causes considerable crop losses in other regions, including other tropical and subtropical crops in its native range and in the Americas.