gamochaeta americana, medicago lupulina, trifolium repens, sherardia arvensis, agrostis capillaris, bellis perennis, hypochaeris radicata, lolium perenne, lotus corniculatus, plantago lanceolata, poa annua, prunella vulgaris, sagina apetala, veronica arvensis, catapodium rigidum, daucus carota, erigeron floribundus, oxalis corniculata, sporobolus indicus