Trifolium nigrescens, commonly known as small hop clover, is an annual herb native to Mediterranean grasslands, open woodlands, and fields, extending to North Africa and the Middle East. It typically grows to a modest height of up to 20 cm (8 inches) and spreads to form a low mat. The plant features trifoliate leaves and small, pale yellow to white flowers that bloom from spring to early summer, offering a subtle aesthetic rather than a showy display. The flowers develop into small, hop-like clusters, which is how it gets its common name.

Small hop clover is valued for its ability to fix nitrogen in the soil, enhancing soil fertility, and is often used in crop rotation and as a green manure. It is also a useful forage plant for livestock and can be included in pasture mixes. In gardens, it can serve as a ground cover or be used to cover bare spots in lawns. It prefers full sun to partial shade and tolerates a range of soil types, provided they are well-drained. While it is generally low-maintenance, it can become weedy in some conditions and may require management to prevent unwanted spread.CC BY-SA 4.0