光叶栗米草（学名：Mollugo verticillata）为粟米草科粟米草属下的一个种。

Mollugo verticillata ( green carpetweed) is a rapidly spreading annual plant from tropical America. In eastern North America, it is a common weed growing in disturbed areas. It forms a prostrate circular mat that can quickly climb over nearby plants and obstacles. The species has been reported from every state in the United States except Alaska, Hawaii, and Utah, as well as from British Columbia, Manitoba. Ontario, Quebec, New Brunswick and Nova Scotia.