The results of the evaluation of the growth and development rates, the green mass yield, the biochemical composition and the content of amino acids, phosphorous and calcium, the nutritive and energy value of the forage, as well as the biomethane production potential of the local ecotype of the leguminous species Anthyllis macrocephala, maintained in monoculture in the Botanical Garden (Institute) of the Academy of Sciences of Moldova, are presented in this article. It has been determined that the green mass yield in the first mowing reached 24.1 t/ha; 100 kg green mass contain 27 nutritive units, 282 MJ metabolizable energy and 3.90 kg digestible protein, exceeding substantially Medicago sativa; the calculated gas forming potential of the fermentable organic matter reached 507 litre/kg volatile solid, content of methane - 52.5 %.