Forb

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.

So younger is better and the part nearest the roots is better, but what makes life possible for the pronghorn is a supply of forbs—small broadleaf plants growing among the grasses.

Common understory forbs included, but were not limited to, large-leaved aster, bracken fern (Pteridium aquilinum), bluebead lily, species of clubmoss, Canada mayflower, and sweet coltsfoot (Petasites frigidus).