|Repens is a species that is very invasive, rarely cultivated as annual. Often a weed in lawns. In general, Trifolium has many species, most of them cover crops. They are excellent for overwintering vacant land, as they are nitrogen fixing. Some can be used effectively for ground cover or as lawn substitutes. The foliage is the typical three-leaved clover, very occasionally four. Require full sun to partial shade and regular moisture.