Several species of clover and clover-like plants (trefoils and medicks) are low-growing and commonly found in lawns. At a glance, their leaves look similar but it is possible to tell them apart, especially when in flower. The descriptions and images below will help you identify some common species:
White clover (Trifolium repens) is a creeping perennial able to produce roots at growing points along its stems. It can grow to a height of 45cm (18in) but is often much shorter in lawns. Leaves are usually trifoliate (having three leaflets) but may have four leaflets – if you're lucky! Leaflets have rounded tips, often with a white mark. The flowers are creamy-white, sometimes with a hint of pale pink, and appear from May to October.
Red clover (Trifolium pratense) is a perennial that can grow 60cm (2ft) tall. It is not common in closely mown lawns but grows well in long grass and meadows. The leaves are trifoliate and leaflets are oval with a distinctive, pale V-shaped mark. The pinkish-red flowers appear from May to October and are great for pollinators, making it a good choice for a wildlflower meadow.
Lesser trefoil (Trifolium dubium) is a low growing annual, able to reach 25cm (10in) in height but is usually shorter. In lawns it forms a flattened, roughly circular mat of thin, wiry stems. Trifoliate leaves have oval leaflets. The compact flowers are yellow and appear from May to October.
Hare’s foot clover (Trifolium arvense) is a low growing annual, usually shorter than 25cm (10in) when growing in lawns. Its stems and trifoliate leaves, with narrow leaflets, are covered in soft hairs. The pale pink flowers, produced from June to September, are also covered in silky white hairs, giving the whole plant a soft, fluffy appearance.
Bird’s foot trefoil (Lotus corniculatus) is a perennial with a sprawling habit up to 20cm (8in) in height. Leaves consist of five leaflets, with one pair of leaflets near the base of the leaf stalk and the other three at the tip. Reddish buds open to yellow flowers from May to October. Its long, thin seedpods are quite distinctive.
Black medick (Medicago lupulina) is a low-growing annual or short-lived perennial, reaching about 20cm (8in) in height with stems forming a low mat in lawns. Its leaves are trifoliate, with a tiny point at the tip of each leaflet. Rounded, yellow flowerheads from April to October are followed by black seedpods.
Slender trefoil (Trifolium micranthum) is a low growing annual, similar to lesser trefoil but smaller in stature, generally growing to less than 10cm (4in) in height. The trifoliate leaves have short stalks. Small yellow flowers appear during summer.
Distinguishing between the clovers in your lawn isn’t essential, as they can all be controlled using the same methods, if required. If you’re an RHS member and are unsure of what type of clover, trefoil or medick is growing in your garden, you can use the RHS Gardening Advice service to get your plants identified.