This low spreading perennial become widely promoted for forage in North America after 1950 (F), especially in northern regions (Cr), but it remains uncommon in wamer regions of the southeast (W). In Ky. it was first recorded as a wild plant in 1992 (BA; Chester 1992), and it been much used since then for showy roadside plantings, often spreading into nearby mowed areas. There is also a coll. labelled L. tenuis Waldst. & Kit ex Willd. (= L. corniculatus var. tenuifolius) from a stripmine in BREA (DHL), perhaps established from sown seed. Curiously, Lotus spp. were not used in early forage trials at the Univ. of Ky. ca. 1890-1900 (Gm). The related Anthyllis vulneraria L. was tried and recommended but did not become naturalized.