Grona triflora

Grona triflora (syn. Desmodium triflorum), the creeping tick-trefoil or three-flowered beggarweed, is a low, prostrate, mat-forming perennial herb in the Fabaceae with slender, wiry, much-branched stems that root at the nodes and rarely rise more than 5–15 cm above the ground. Leaves are alternate, trifoliolate; the leaflets are small, obovate to obcordate, 4–10 mm long, with entire margins, a notched apex, and sparse appressed hairs on the lower surface. Stipules are membranous, ovate-lanceolate, and persistent. Inflorescences are short axillary clusters of one to three (rarely more) small papilionaceous flowers, each 4–6 mm long with a pale pink to violet standard; the calyx is hairy and four-lobed. The fruit is a small, flattened, slightly curved loment 8–15 mm long composed of 3–5 indehiscent, one-seeded segments that separate readily and cling to fur and clothing by hooked hairs. It is a common weed of lawns, pastures, and disturbed open ground throughout the tropics and subtropics worldwide.