Before revision: White clover is included in some grass seed mixes, because it is a legume that fixes soil nitrogen with help of mycorrhiza A beneficial weed can be an invasive plant that has some companion plant effect , is edible, contributes to soil health, adds ornamental value, or is otherwise beneficial .
After revision: White clover is included in some grass seed mixeswhich because it is a legume that fixes soil nitrogen with help of mycorrhiza A beneficial weed can be an invasive plant that has some companion plant effect , is edible, contributes to soil health, adds ornamental value, and as well as beneficial also .