The primary dryland cropping system of the Central Great Plains region is winter wheat summer fallow. This system provides benefits which generally guarantee a successful crop harvest. However, low moisture storage, increased erosion, and other problems make the fallow system inefficient. Producers in Southern Australia have nearly replaced their fallow system with a ley farming system. Ley farming is simply the integration of forage legumes and livestock into annual cereal cropping utilizing annual legumes that reseed from the seed bank. Several potential ley species: rigid medic (Medicago rigidula), hairy vetch (Vicia villosa), wooly pod vetch (Vicia villosa spp.dasycarpa) Austrian winter pea (Pisum sativum) white sweet clover (Melilotus alba), birdsfoot trefoil (Lotus corniculatus), and alfalfa (Medicago sativa) were investigated in two field studies in Southeastern WY. The objectives of this experiment were to determine forage production, forage quality, and hardseededness of the previously mentioned legume species. Medic, both vetch species, and clover all produce forage yields and quality similar (P>0.05) to alfalfa. The medic, hairy vetch, wooly pod vetch, clover, and alfalfa produced a mean of 7570, 8020, 6360, 6260 and 4340 kg ha^-1 dry matter forage, respectively while trefoil produced only 1560 kg ha^-1.  As a comparative measure of quality, relative feed value for medic, hairy vetch, wooly pod vetch, clover, trefoil, and alfalfa was 131, 97, 99, 122, 187, and 122, respectively.   Trefoil varieties produced high quality forage but had extremely low yields. Trials are being repeated in 2006.  First year results indicate that with the exception of trefoil all these species have potential for use in a Central Great Plains ley farming system and warrant continued investigation examining level of hardseededness.