(chiefly ecology) Any nonwoody flowering plant that is not a graminoid (a grass, sedge, or rush).
2004, A. Kirilov, P. Todorova Development of forage areas and forage resources in Bulgaria during the period of transition, A. Lüscher, et al. (editors), Land Use Systems in Grassland Dominated Regions: Proceedings of the 20th General Meeting of the European Grassland Federation, Grassland Science in Europe, Volume 9, page 859,
Buchgraber (1995) recommends 50-70% of grasses, 10-30% of legumes and also 10-30% of forbs on meadows, while Kessler (1994) recommends the same proportion of grasses, 10-20% of legumes and 20-40% of forbs on natural meadows.