cynodon dactylon, bromus tectorum, hordeum murinum, astragalus hamosus, astragalus varius, centaurea arenaria, centaurea diffusa, eragrostis minor, erodium cicutarium, medicago monspeliaca, portulaca oleracea, scolymus hispanicus, silene conica, silene thymifolia, tribulus terrestris, trifolium fragiferum