General: Threeflower ticktrefoil as described by B.C. Stone (1970) is a “Creeping herb; much-branched, somewhat mat-forming; leaves of 3 leaflets, the lower leaves sometimes unifoliolate; leaflets obovate, to obcordate, rounded and emarginate at tip, mostly less than 1 cm long, up to 9 mm wide, sometimes with 2 white marks; flowers few in fascicles, opposite leaves, pedicels 3-8 mm long, lengthening in fruit to just over 1 cm; puberulent; corolla reddish-violet or pale pink, standard obovate, 4-5 mm long; pods up to 17 mm long, about 2.3 mm broad, 3-7-jointed, indehiscent.”
Distribution: Threeflower ticktrefoil is native to the Old World tropics and subtropics. Currently, it is pantropical, extending northward to Florida. For current distribution, please consult the Plant Profile page for this species on the PLANTS Web site.
Habitat: Threeflower ticktrefoil’s habitat is described by A.C. Smith, W.L. Wagner and W.A. Whistler. In Hawai'i, it is “naturalized and common in dry, disturbed sites near the coast and on dry slopes and lava flows, also in lawns, pastures, waste places and along roadsides, 6-1,443 ft". In Fiji, it is “abundantly naturalized at elevations from near sea level to 1,968 ft in lawns, waste places, and villages, on grassy hillsides, and along roadsides and forest tracks". It is “common in lawns and other disturbed places".